Chapter 1
Lookup tables for all problems in current book

1.1 Chapter 1, First-Order Differential Equations. Section 1.2, Basic Ideas and Terminology. page 21
1.2 Chapter 1, First-Order Differential Equations. Section 1.4, Separable Differential Equations. page 43
1.3 Chapter 1, First-Order Differential Equations. Section 1.6, First-Order Linear Differential Equations. page 59
1.4 Chapter 1, First-Order Differential Equations. Section 1.8, Change of Variables. page 79
1.5 Chapter 1, First-Order Differential Equations. Section 1.9, Exact Differential Equations. page 91
1.6 Chapter 8, Linear differential equations of order n. Section 8.1, General Theory for Linear Differential Equations. page 502
1.7 Chapter 8, Linear differential equations of order n. Section 8.3, The Method of Undetermined Coefficients. page 525
1.8 Chapter 8, Linear differential equations of order n. Section 8.4, Complex-Valued Trial Solutions. page 529
1.9 Chapter 8, Linear differential equations of order n. Section 8.7, The Variation of Parameters Method. page 556
1.10 Chapter 8, Linear differential equations of order n. Section 8.8, A Differential Equation with Nonconstant Coefficients. page 567
1.11 Chapter 8, Linear differential equations of order n. Section 8.9, Reduction of Order. page 572
1.12 Chapter 8, Linear differential equations of order n. Section 8.10, Chapter review. page 575
1.13 Chapter 9, First order linear systems. Section 9.1, page 587
1.14 Chapter 9, First order linear systems. Section 9.2, page 592
1.15 Chapter 9, First order linear systems. Section 9.3, page 598
1.16 Chapter 9, First order linear systems. Section 9.4 (Nondefective coefficient matrix), page 607
1.17 Chapter 9, First order linear systems. Section 9.5 (Defective coefficient matrix), page 619
1.18 Chapter 9, First order linear systems. Section 9.6 (Variation of parameters for linear systems), page 624
1.19 Chapter 9, First order linear systems. Section 9.8 (Matrix exponential function), page 642
1.20 Chapter 9, First order linear systems. Section 9.11 (Chapter review), page 665
1.21 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.4. page 689
1.22 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.7. page 704
1.23 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.8. page 710
1.24 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.2. page 739
1.25 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.4. page 758
1.26 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.5. page 771
1.27 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.6. page 783
1.28 Chapter 11, Series Solutions to Linear Differential Equations. Additional problems. Section 11.7. page 788

1.1 Chapter 1, First-Order Differential Equations. Section 1.2, Basic Ideas and Terminology. page 21

Table 1.1: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3557

Problem 7

\begin{align*} y^{\prime \prime }-25 y&=0 \\ \end{align*}

3558

Problem 8

\begin{align*} y^{\prime \prime }+4 y&=0 \\ \end{align*}

3559

Problem 9

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=0 \\ \end{align*}

3560

Problem 10

\begin{align*} y^{\prime }&=-y^{2} \\ \end{align*}

3561

Problem 11

\begin{align*} y^{\prime }&=\frac {y}{2 x} \\ \end{align*}

3562

Problem 12

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=0 \\ \end{align*}

3563

Problem 13

\begin{align*} y^{\prime \prime }-9 y&=0 \\ \end{align*}

3564

Problem 14

\begin{align*} x^{2} y^{\prime \prime }+5 x y^{\prime }+3 y&=0 \\ \end{align*}

3565

Problem 15

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=0 \\ \end{align*}

3566

Problem 16

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+13 y&=0 \\ \end{align*}

3567

Problem 17

\begin{align*} 2 x^{2} y^{\prime \prime }-x y^{\prime }+y&=9 x^{2} \\ \end{align*}

3568

Problem 18

\begin{align*} x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y&=x^{4} \sin \left (x \right ) \\ \end{align*}

3569

Problem 19

\begin{align*} y^{\prime \prime }-\left (a +b \right ) y^{\prime }+a b y&=0 \\ \end{align*}

3570

Problem 20

\begin{align*} y^{\prime \prime }-2 a y^{\prime }+a^{2} y&=0 \\ \end{align*}

3571

Problem 21

\begin{align*} y^{\prime \prime }-2 a y^{\prime }+\left (a^{2}+b^{2}\right ) y&=0 \\ \end{align*}

3572

Problem 22

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=0 \\ \end{align*}

3573

Problem 23

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=0 \\ \end{align*}

3574

Problem 24

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-y&=0 \\ \end{align*}

3575

Problem 25

\begin{align*} x^{2} y^{\prime \prime }+5 x y^{\prime }+4 y&=0 \\ \end{align*}

3576

Problem 28

\begin{align*} y^{\prime }&=\frac {{\mathrm e}^{x}-\sin \left (y\right )}{x \cos \left (y\right )} \\ \end{align*}

3577

Problem 29

\begin{align*} y^{\prime }&=\frac {1-y^{2}}{2 y x +2} \\ \end{align*}

3578

Problem 30

\begin{align*} y^{\prime }&=\frac {\left (1-y \,{\mathrm e}^{y x}\right ) {\mathrm e}^{-y x}}{x} \\ y \left (1\right ) &= 0 \\ \end{align*}

3579

Problem 31

\begin{align*} y^{\prime }&=\frac {x^{2} \left (1-y^{2}\right )+y \,{\mathrm e}^{\frac {y}{x}}}{x \left ({\mathrm e}^{\frac {y}{x}}+2 x^{2} y\right )} \\ \end{align*}

3580

Problem 32

\begin{align*} y^{\prime }&=\frac {\cos \left (x \right )-2 x y^{2}}{2 x^{2} y} \\ y \left (\pi \right ) &= \frac {1}{\pi } \\ \end{align*}

3581

Problem 33

\begin{align*} y^{\prime }&=\sin \left (x \right ) \\ \end{align*}

3582

Problem 34

\begin{align*} y^{\prime }&=\frac {1}{x^{{2}/{3}}} \\ \end{align*}

3583

Problem 35

\begin{align*} y^{\prime \prime }&=x \,{\mathrm e}^{x} \\ \end{align*}

3584

Problem 36

\begin{align*} y^{\prime \prime }&=x^{n} \\ \end{align*}

3585

Problem 37

\begin{align*} y^{\prime }&=x^{2} \ln \left (x \right ) \\ y \left (1\right ) &= 2 \\ \end{align*}

3586

Problem 38

\begin{align*} y^{\prime \prime }&=\cos \left (x \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

3587

Problem 39

\begin{align*} y^{\prime \prime \prime }&=6 x \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -1 \\ y^{\prime \prime }\left (0\right ) &= -4 \\ \end{align*}

3588

Problem 40

\begin{align*} y^{\prime \prime }&=x \,{\mathrm e}^{x} \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}

3589

Problem 45

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=0 \\ \end{align*}

3590

Problem 46

\begin{align*} x^{2} y^{\prime \prime }-x y^{\prime }-8 y&=0 \\ \end{align*}

3591

Problem 47

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=x^{2} \ln \left (x \right ) \\ \end{align*}

1.2 Chapter 1, First-Order Differential Equations. Section 1.4, Separable Differential Equations. page 43

Table 1.3: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3592

Problem 1

\begin{align*} y^{\prime }&=2 y x \\ \end{align*}

3593

Problem 2

\begin{align*} y^{\prime }&=\frac {y^{2}}{x^{2}+1} \\ \end{align*}

3594

Problem 3

\begin{align*} {\mathrm e}^{x +y} y^{\prime }-1&=0 \\ \end{align*}

3595

Problem 4

\begin{align*} y^{\prime }&=\frac {y}{x \ln \left (x \right )} \\ \end{align*}

3596

Problem 5

\begin{align*} y-\left (x -1\right ) y^{\prime }&=0 \\ \end{align*}

3597

Problem 6

\begin{align*} y^{\prime }&=\frac {2 x \left (-1+y\right )}{x^{2}+3} \\ \end{align*}

3598

Problem 7

\begin{align*} -x y^{\prime }+y&=3-2 x^{2} y^{\prime } \\ \end{align*}

3599

Problem 8

\begin{align*} y^{\prime }&=\frac {\cos \left (x -y\right )}{\sin \left (x \right ) \sin \left (y\right )}-1 \\ \end{align*}

3600

Problem 9

\begin{align*} y^{\prime }&=\frac {x \left (y^{2}-1\right )}{2 \left (x -2\right ) \left (x -1\right )} \\ \end{align*}

3601

Problem 10

\begin{align*} y^{\prime }&=\frac {x^{2} y-32}{-x^{2}+16}+2 \\ \end{align*}

3602

Problem 11

\begin{align*} \left (x -a \right ) \left (x -b \right ) y^{\prime }-y+c&=0 \\ \end{align*}

3603

Problem 12

\begin{align*} \left (x^{2}+1\right ) y^{\prime }+y^{2}&=-1 \\ y \left (0\right ) &= 1 \\ \end{align*}

3604

Problem 13

\begin{align*} \left (-x^{2}+1\right ) y^{\prime }+y x&=a x \\ y \left (0\right ) &= 2 a \\ \end{align*}

3605

Problem 14

\begin{align*} y^{\prime }&=1-\frac {\sin \left (x +y\right )}{\cos \left (x \right ) \sin \left (y\right )} \\ y \left (\frac {\pi }{4}\right ) &= \frac {\pi }{4} \\ \end{align*}

3606

Problem 15

\begin{align*} y^{\prime }&=y^{3} \sin \left (x \right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

3607

Problem 16

\begin{align*} y^{\prime }&=\frac {2 \sqrt {-1+y}}{3} \\ y \left (1\right ) &= 1 \\ \end{align*}

3608

Problem 17

\begin{align*} m v^{\prime }&=m g -k v^{2} \\ v \left (0\right ) &= 0 \\ \end{align*}

1.3 Chapter 1, First-Order Differential Equations. Section 1.6, First-Order Linear Differential Equations. page 59

Table 1.5: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3609

Problem 1

\begin{align*} y^{\prime }+y&=4 \,{\mathrm e}^{x} \\ \end{align*}

3610

Problem 2

\begin{align*} y^{\prime }+\frac {2 y}{x}&=5 x^{2} \\ \end{align*}

3611

Problem 3

\begin{align*} x^{2} y^{\prime }-4 y x&=x^{7} \sin \left (x \right ) \\ \end{align*}

3612

Problem 4

\begin{align*} y^{\prime }+2 y x&=2 x^{3} \\ \end{align*}

3613

Problem 5

\begin{align*} y^{\prime }+\frac {2 x y}{-x^{2}+1}&=4 x \\ \end{align*}

3614

Problem 6

\begin{align*} y^{\prime }+\frac {2 x y}{x^{2}+1}&=\frac {4}{\left (x^{2}+1\right )^{2}} \\ \end{align*}

3615

Problem 7

\begin{align*} 2 \cos \left (x \right )^{2} y^{\prime }+y \sin \left (2 x \right )&=4 \cos \left (x \right )^{4} \\ \end{align*}

3616

Problem 8

\begin{align*} y^{\prime }+\frac {y}{x \ln \left (x \right )}&=9 x^{2} \\ \end{align*}

3617

Problem 9

\begin{align*} y^{\prime }-y \tan \left (x \right )&=8 \sin \left (x \right )^{3} \\ \end{align*}

3618

Problem 10

\begin{align*} x^{\prime } t +2 x&=4 \,{\mathrm e}^{t} \\ \end{align*}

3619

Problem 11

\begin{align*} y^{\prime }&=\sin \left (x \right ) \left (y \sec \left (x \right )-2\right ) \\ \end{align*}

3620

Problem 12

\begin{align*} 1-y \sin \left (x \right )-\cos \left (x \right ) y^{\prime }&=0 \\ \end{align*}

3621

Problem 13

\begin{align*} y^{\prime }-\frac {y}{x}&=2 x^{2} \ln \left (x \right ) \\ \end{align*}

3622

Problem 14

\begin{align*} y^{\prime }+\alpha y&={\mathrm e}^{\beta x} \\ \end{align*}

3623

Problem 15

\begin{align*} y^{\prime }+\frac {m y}{x}&=\ln \left (x \right ) \\ \end{align*}

3624

Problem 16

\begin{align*} y^{\prime }+\frac {2 y}{x}&=4 x \\ y \left (1\right ) &= 2 \\ \end{align*}

3625

Problem 17

\begin{align*} \sin \left (x \right ) y^{\prime }-\cos \left (x \right ) y&=\sin \left (2 x \right ) \\ y \left (\frac {\pi }{2}\right ) &= 2 \\ \end{align*}

3626

Problem 18

\begin{align*} x^{\prime }+\frac {2 x}{4-t}&=5 \\ x \left (0\right ) &= 4 \\ \end{align*}

3627

Problem 19

\begin{align*} y-{\mathrm e}^{x}+y^{\prime }&=0 \\ y \left (0\right ) &= 1 \\ \end{align*}

3628

Problem 20

\begin{align*} y^{\prime }-2 y&=\left \{\begin {array}{cc} 1 & x \le 1 \\ 0 & 1<x \end {array}\right . \\ y \left (0\right ) &= 3 \\ \end{align*}

3629

Problem 21

\begin{align*} y^{\prime }-2 y&=\left \{\begin {array}{cc} 1-x & x <1 \\ 0 & 1\le x \end {array}\right . \\ y \left (0\right ) &= 1 \\ \end{align*}

3630

Problem 22

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{x}&=9 x \\ \end{align*}

3631

Problem 30

\begin{align*} y^{\prime }+\frac {y}{x}&=\cos \left (x \right ) \\ \end{align*}

3632

Problem 31

\begin{align*} y^{\prime }+y&={\mathrm e}^{-2 x} \\ \end{align*}

3633

Problem 32

\begin{align*} y^{\prime }+y \cot \left (x \right )&=2 \cos \left (x \right ) \\ \end{align*}

3634

Problem 33

\begin{align*} x y^{\prime }-y&=x^{2} \ln \left (x \right ) \\ \end{align*}

1.4 Chapter 1, First-Order Differential Equations. Section 1.8, Change of Variables. page 79

Table 1.7: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3635

Problem 9

\begin{align*} y^{\prime }&=\frac {x^{2}+y x +y^{2}}{x^{2}} \\ \end{align*}

3636

Problem 10

\begin{align*} \left (3 x -y\right ) y^{\prime }&=3 y \\ \end{align*}

3637

Problem 11

\begin{align*} y^{\prime }&=\frac {\left (x +y\right )^{2}}{2 x^{2}} \\ \end{align*}

3638

Problem 12

\begin{align*} \sin \left (\frac {y}{x}\right ) \left (x y^{\prime }-y\right )&=x \cos \left (\frac {y}{x}\right ) \\ \end{align*}

3639

Problem 13

\begin{align*} x y^{\prime }&=\sqrt {16 x^{2}-y^{2}}+y \\ \end{align*}

3640

Problem 14

\begin{align*} x y^{\prime }-y&=\sqrt {9 x^{2}+y^{2}} \\ \end{align*}

3641

Problem 15

\begin{align*} y \left (x^{2}-y^{2}\right )-x \left (x^{2}-y^{2}\right ) y^{\prime }&=0 \\ \end{align*}

3642

Problem 16

\begin{align*} x y^{\prime }+y \ln \left (x \right )&=\ln \left (y\right ) y \\ \end{align*}

3643

Problem 17

\begin{align*} y^{\prime }&=\frac {y^{2}+2 y x -2 x^{2}}{x^{2}-y x +y^{2}} \\ \end{align*}

3644

Problem 18

\begin{align*} 2 x y y^{\prime }-2 y^{2}-x^{2} {\mathrm e}^{-\frac {y^{2}}{x^{2}}}&=0 \\ \end{align*}

3645

Problem 19

\begin{align*} x^{2} y^{\prime }&=y^{2}+3 y x +x^{2} \\ \end{align*}

3646

Problem 20

\begin{align*} y y^{\prime }&=\sqrt {x^{2}+y^{2}}-x \\ \end{align*}

3647

Problem 21

\begin{align*} 2 x \left (2 x +y\right ) y^{\prime }&=y \left (4 x -y\right ) \\ \end{align*}

3648

Problem 22

\begin{align*} x y^{\prime }&=\tan \left (\frac {y}{x}\right ) x +y \\ \end{align*}

3649

Problem 23

\begin{align*} y^{\prime }&=\frac {x \sqrt {x^{2}+y^{2}}+y^{2}}{y x} \\ \end{align*}

3650

Problem 25

\begin{align*} y^{\prime }&=\frac {-2 x +4 y}{x +y} \\ y \left (0\right ) &= 2 \\ \end{align*}

3651

Problem 26

\begin{align*} y^{\prime }&=\frac {2 x -y}{x +4 y} \\ y \left (1\right ) &= 1 \\ \end{align*}

3652

Problem 27

\begin{align*} y^{\prime }&=\frac {y-\sqrt {x^{2}+y^{2}}}{x} \\ y \left (3\right ) &= 4 \\ \end{align*}

3653

Problem 28

\begin{align*} x y^{\prime }-y&=\sqrt {4 x^{2}-y^{2}} \\ \end{align*}

3654

Problem 29(a)

\begin{align*} y^{\prime }&=\frac {x +a y}{a x -y} \\ \end{align*}

3655

Problem 29(b)

\begin{align*} y^{\prime }&=\frac {x +\frac {y}{2}}{\frac {x}{2}-y} \\ y \left (1\right ) &= 1 \\ \end{align*}

3656

Problem 38

\begin{align*} y^{\prime }-\frac {y}{x}&=\frac {4 x^{2} \cos \left (x \right )}{y} \\ \end{align*}

3657

Problem 39

\begin{align*} y^{\prime }+\frac {y \tan \left (x \right )}{2}&=2 y^{3} \sin \left (x \right ) \\ \end{align*}

3658

Problem 40

\begin{align*} y^{\prime }-\frac {3 y}{2 x}&=6 y^{{1}/{3}} x^{2} \ln \left (x \right ) \\ \end{align*}

3659

Problem 41

\begin{align*} y^{\prime }+\frac {2 y}{x}&=6 \sqrt {x^{2}+1}\, \sqrt {y} \\ \end{align*}

3660

Problem 42

\begin{align*} y^{\prime }+\frac {2 y}{x}&=6 y^{2} x^{4} \\ \end{align*}

3661

Problem 43

\begin{align*} 2 x \left (y^{\prime }+x^{2} y^{3}\right )+y&=0 \\ \end{align*}

3662

Problem 44

\begin{align*} \left (x -a \right ) \left (x -b \right ) \left (y^{\prime }-\sqrt {y}\right )&=2 \left (b -a \right ) y \\ \end{align*}

3663

Problem 45

\begin{align*} y^{\prime }+\frac {6 y}{x}&=\frac {3 y^{{2}/{3}} \cos \left (x \right )}{x} \\ \end{align*}

3664

Problem 46

\begin{align*} y^{\prime }+4 y x&=4 x^{3} \sqrt {y} \\ \end{align*}

3665

Problem 47

\begin{align*} y^{\prime }-\frac {y}{2 x \ln \left (x \right )}&=2 x y^{3} \\ \end{align*}

3666

Problem 48

\begin{align*} y^{\prime }-\frac {y}{\left (\pi -1\right ) x}&=\frac {3 x y^{\pi }}{1-\pi } \\ \end{align*}

3667

Problem 49

\begin{align*} 2 y^{\prime }+y \cot \left (x \right )&=\frac {8 \cos \left (x \right )^{3}}{y} \\ \end{align*}

3668

Problem 50

\begin{align*} \left (1-\sqrt {3}\right ) y^{\prime }+y \sec \left (x \right )&=y^{\sqrt {3}} \sec \left (x \right ) \\ \end{align*}

3669

Problem 51

\begin{align*} y^{\prime }+\frac {2 x y}{x^{2}+1}&=x y^{2} \\ y \left (0\right ) &= 1 \\ \end{align*}

3670

Problem 52

\begin{align*} y^{\prime }+y \cot \left (x \right )&=y^{3} \sin \left (x \right )^{3} \\ y \left (\frac {\pi }{2}\right ) &= 1 \\ \end{align*}

3671

Problem 54

\begin{align*} y^{\prime }&=\left (9 x -y\right )^{2} \\ y \left (0\right ) &= 0 \\ \end{align*}

3672

Problem 55

\begin{align*} y^{\prime }&=\left (4 x +y+2\right )^{2} \\ \end{align*}

3673

Problem 56

\begin{align*} y^{\prime }&=\sin \left (3 x -3 y+1\right )^{2} \\ \end{align*}

3674

Problem 58

\begin{align*} y^{\prime }&=\frac {y \left (\ln \left (y x \right )-1\right )}{x} \\ \end{align*}

3675

Problem 59

\begin{align*} y^{\prime }&=2 x \left (x +y\right )^{2}-1 \\ y \left (0\right ) &= 1 \\ \end{align*}

3676

Problem 60

\begin{align*} y^{\prime }&=\frac {x +2 y-1}{2 x -y+3} \\ \end{align*}

3677

Problem 61

\begin{align*} y^{\prime }+p \left (x \right ) y+q \left (x \right ) y^{2}&=r \left (x \right ) \\ \end{align*}

3678

Problem 62

\begin{align*} y^{\prime }+\frac {2 y}{x}-y^{2}&=-\frac {2}{x^{2}} \\ \end{align*}

3679

Problem 63

\begin{align*} y^{\prime }+\frac {7 y}{x}-3 y^{2}&=\frac {3}{x^{2}} \\ \end{align*}

3680

Problem 64

\begin{align*} \frac {y^{\prime }}{y}+p \left (x \right ) \ln \left (y\right )&=q \left (x \right ) \\ \end{align*}

3681

Problem 65

\begin{align*} \frac {y^{\prime }}{y}-\frac {2 \ln \left (y\right )}{x}&=\frac {1-2 \ln \left (x \right )}{x} \\ y \left (1\right ) &= {\mathrm e} \\ \end{align*}

3682

Problem 67

\begin{align*} \sec \left (y\right )^{2} y^{\prime }+\frac {\tan \left (y\right )}{2 \sqrt {x +1}}&=\frac {1}{2 \sqrt {x +1}} \\ \end{align*}

1.5 Chapter 1, First-Order Differential Equations. Section 1.9, Exact Differential Equations. page 91

Table 1.9: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3683

Problem 1

\begin{align*} y \,{\mathrm e}^{y x}+\left (2 y-x \,{\mathrm e}^{y x}\right ) y^{\prime }&=0 \\ \end{align*}

3684

Problem 2

\begin{align*} \cos \left (y x \right )-x y \sin \left (y x \right )-x^{2} \sin \left (y x \right ) y^{\prime }&=0 \\ \end{align*}

3685

Problem 3

\begin{align*} y+3 x^{2}+x y^{\prime }&=0 \\ \end{align*}

3686

Problem 4

\begin{align*} 2 x \,{\mathrm e}^{y}+\left (3 y^{2}+x^{2} {\mathrm e}^{y}\right ) y^{\prime }&=0 \\ \end{align*}

3687

Problem 5

\begin{align*} \left (x^{2}+1\right ) y^{\prime }+2 y x&=0 \\ \end{align*}

3688

Problem 6

\begin{align*} y^{2}-2 x +2 x y y^{\prime }&=0 \\ \end{align*}

3689

Problem 7

\begin{align*} 4 \,{\mathrm e}^{2 x}+2 y x -y^{2}+\left (x -y\right )^{2} y^{\prime }&=0 \\ \end{align*}

3690

Problem 8

\begin{align*} \frac {1}{x}-\frac {y}{x^{2}+y^{2}}+\frac {x y^{\prime }}{x^{2}+y^{2}}&=0 \\ \end{align*}

3691

Problem 9

\begin{align*} y \cos \left (y x \right )-\sin \left (x \right )+x \cos \left (y x \right ) y^{\prime }&=0 \\ \end{align*}

3692

Problem 10

\begin{align*} 2 y^{2} {\mathrm e}^{2 x}+3 x^{2}+2 y \,{\mathrm e}^{2 x} y^{\prime }&=0 \\ \end{align*}

3693

Problem 11

\begin{align*} y^{2}+\cos \left (x \right )+\left (2 y x +\sin \left (y\right )\right ) y^{\prime }&=0 \\ \end{align*}

3694

Problem 12

\begin{align*} \sin \left (y\right )+\cos \left (x \right ) y+\left (x \cos \left (y\right )+\sin \left (x \right )\right ) y^{\prime }&=0 \\ \end{align*}

1.6 Chapter 8, Linear differential equations of order n. Section 8.1, General Theory for Linear Differential Equations. page 502

Table 1.11: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3695

Problem 23

\begin{align*} y^{\prime \prime }-2 y^{\prime }-3 y&=0 \\ \end{align*}

3696

Problem 24

\begin{align*} y^{\prime \prime }+7 y^{\prime }+10 y&=0 \\ \end{align*}

3697

Problem 25

\begin{align*} y^{\prime \prime }-36 y&=0 \\ \end{align*}

3698

Problem 26

\begin{align*} y^{\prime \prime }+4 y^{\prime }&=0 \\ \end{align*}

3699

Problem 27

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }-y^{\prime }+3 y&=0 \\ \end{align*}

3700

Problem 28

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }-4 y^{\prime }-12 y&=0 \\ \end{align*}

3701

Problem 29

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }-18 y^{\prime }-40 y&=0 \\ \end{align*}

3702

Problem 30

\begin{align*} y^{\prime \prime \prime }-y^{\prime \prime }-2 y^{\prime }&=0 \\ \end{align*}

3703

Problem 31

\begin{align*} y^{\prime \prime \prime }+y^{\prime \prime }-10 y^{\prime }+8 y&=0 \\ \end{align*}

3704

Problem 32

\begin{align*} y^{\prime \prime \prime \prime }-2 y^{\prime \prime \prime }-y^{\prime \prime }+2 y^{\prime }&=0 \\ \end{align*}

3705

Problem 33

\begin{align*} y^{\prime \prime \prime \prime }-13 y^{\prime \prime }+36 y&=0 \\ \end{align*}

3706

Problem 34

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }-8 y&=0 \\ \end{align*}

3707

Problem 35

\begin{align*} 2 x^{2} y^{\prime \prime }+5 x y^{\prime }+y&=0 \\ \end{align*}

3708

Problem 36

\begin{align*} x^{3} y^{\prime \prime \prime }+x^{2} y^{\prime \prime }-2 x y^{\prime }+2 y&=0 \\ \end{align*}

3709

Problem 37

\begin{align*} x^{3} y^{\prime \prime \prime }+3 x^{2} y^{\prime \prime }-6 x y^{\prime }&=0 \\ \end{align*}

3710

Problem 38

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=18 \,{\mathrm e}^{5 x} \\ \end{align*}

3711

Problem 39

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=4 x^{2}+5 \\ \end{align*}

3712

Problem 40

\begin{align*} y^{\prime \prime \prime }+2 y^{\prime \prime }-y^{\prime }-2 y&=4 \,{\mathrm e}^{2 x} \\ \end{align*}

3713

Problem 41

\begin{align*} y^{\prime \prime \prime }+y^{\prime \prime }-10 y^{\prime }+8 y&=24 \,{\mathrm e}^{-3 x} \\ \end{align*}

3714

Problem 42

\begin{align*} y^{\prime \prime \prime }+5 y^{\prime \prime }+6 y^{\prime }&=6 \,{\mathrm e}^{-x} \\ \end{align*}

1.7 Chapter 8, Linear differential equations of order n. Section 8.3, The Method of Undetermined Coefficients. page 525

Table 1.13: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3715

Problem 25

\begin{align*} y^{\prime \prime }+y&=6 \,{\mathrm e}^{x} \\ \end{align*}

3716

Problem 26

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=5 \,{\mathrm e}^{-2 x} x \\ \end{align*}

3717

Problem 27

\begin{align*} y^{\prime \prime }+4 y&=8 \sin \left (2 x \right ) \\ \end{align*}

3718

Problem 28

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=5 \,{\mathrm e}^{2 x} \\ \end{align*}

3719

Problem 29

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=3 \sin \left (2 x \right ) \\ \end{align*}

3720

Problem 30

\begin{align*} y^{\prime \prime \prime }+2 y^{\prime \prime }-5 y^{\prime }-6 y&=4 x^{2} \\ \end{align*}

3721

Problem 31

\begin{align*} y^{\prime \prime \prime }-y^{\prime \prime }+y^{\prime }-y&=9 \,{\mathrm e}^{-x} \\ \end{align*}

3722

Problem 32

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }+3 y^{\prime }+y&=2 \,{\mathrm e}^{-x}+3 \,{\mathrm e}^{2 x} \\ \end{align*}

3723

Problem 33

\begin{align*} y^{\prime \prime }+9 y&=5 \cos \left (2 x \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

3724

Problem 34

\begin{align*} y^{\prime \prime }-y&=9 x \,{\mathrm e}^{2 x} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 7 \\ \end{align*}

3725

Problem 35

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=-10 \sin \left (x \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

3726

Problem 36

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=4 \cos \left (x \right )-2 \sin \left (x \right ) \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}

3727

Problem 38

\begin{align*} y^{\prime \prime }+\omega ^{2} y&=\frac {F_{0} \cos \left (\omega t \right )}{m} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

3728

Problem 39

\begin{align*} y^{\prime \prime }-4 y^{\prime }+6 y&=7 \,{\mathrm e}^{2 x} \\ \end{align*}

3729

Problem 40

\begin{align*} y^{\prime \prime \prime }+y^{\prime \prime }+y^{\prime }+y&=4 x \,{\mathrm e}^{x} \\ \end{align*}

3730

Problem 41

\begin{align*} y^{\prime \prime \prime \prime }+104 y^{\prime \prime \prime }+2740 y^{\prime \prime }&=5 \cos \left (3 x \right ) {\mathrm e}^{-2 x} \\ \end{align*}

3731

Problem 46

\begin{align*} y^{\prime \prime }+2 y^{\prime }-3 y&=\sin \left (x \right )^{2} \\ \end{align*}

3732

Problem 47

\begin{align*} y^{\prime \prime }+6 y&=\sin \left (x \right )^{2} \cos \left (x \right )^{2} \\ \end{align*}

1.8 Chapter 8, Linear differential equations of order n. Section 8.4, Complex-Valued Trial Solutions. page 529

Table 1.15: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3733

Problem 1

\begin{align*} y^{\prime \prime }-16 y&=20 \cos \left (4 x \right ) \\ \end{align*}

3734

Problem 2

\begin{align*} y^{\prime \prime }+2 y^{\prime }+y&=50 \sin \left (3 x \right ) \\ \end{align*}

3735

Problem 3

\begin{align*} y^{\prime \prime }-y&=10 \,{\mathrm e}^{2 x} \cos \left (x \right ) \\ \end{align*}

3736

Problem 4

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=169 \sin \left (3 x \right ) \\ \end{align*}

3737

Problem 5

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=40 \sin \left (x \right )^{2} \\ \end{align*}

3738

Problem 6

\begin{align*} y^{\prime \prime }+y&=3 \,{\mathrm e}^{x} \cos \left (2 x \right ) \\ \end{align*}

3739

Problem 7

\begin{align*} y^{\prime \prime }+2 y^{\prime }+2 y&=2 \,{\mathrm e}^{-x} \sin \left (x \right ) \\ \end{align*}

3740

Problem 8

\begin{align*} y^{\prime \prime }-4 y&=100 \,{\mathrm e}^{x} \sin \left (x \right ) x \\ \end{align*}

3741

Problem 9

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=4 \,{\mathrm e}^{-x} \cos \left (2 x \right ) \\ \end{align*}

3742

Problem 10

\begin{align*} y^{\prime \prime }-2 y^{\prime }+10 y&=24 \,{\mathrm e}^{x} \cos \left (3 x \right ) \\ \end{align*}

3743

Problem 11

\begin{align*} y^{\prime \prime }+16 y&=34 \,{\mathrm e}^{x}+16 \cos \left (4 x \right )-8 \sin \left (4 x \right ) \\ \end{align*}

1.9 Chapter 8, Linear differential equations of order n. Section 8.7, The Variation of Parameters Method. page 556

Table 1.17: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3744

Problem 1

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&=4 \,{\mathrm e}^{3 x} \ln \left (x \right ) \\ \end{align*}

3745

Problem 2

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=\frac {{\mathrm e}^{-2 x}}{x^{2}} \\ \end{align*}

3746

Problem 3

\begin{align*} y^{\prime \prime }+9 y&=18 \sec \left (3 x \right )^{3} \\ \end{align*}

3747

Problem 4

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=\frac {2 \,{\mathrm e}^{-3 x}}{x^{2}+1} \\ \end{align*}

3748

Problem 5

\begin{align*} y^{\prime \prime }-4 y&=\frac {8}{{\mathrm e}^{2 x}+1} \\ \end{align*}

3749

Problem 6

\begin{align*} y^{\prime \prime }-4 y^{\prime }+5 y&={\mathrm e}^{2 x} \tan \left (x \right ) \\ \end{align*}

3750

Problem 7

\begin{align*} y^{\prime \prime }+9 y&=\frac {36}{4-\cos \left (3 x \right )^{2}} \\ \end{align*}

3751

Problem 8

\begin{align*} y^{\prime \prime }-10 y^{\prime }+25 y&=\frac {2 \,{\mathrm e}^{5 x}}{x^{2}+4} \\ \end{align*}

3752

Problem 9

\begin{align*} y^{\prime \prime }-6 y^{\prime }+13 y&=4 \,{\mathrm e}^{3 x} \sec \left (2 x \right )^{2} \\ \end{align*}

3753

Problem 10

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right )+4 \,{\mathrm e}^{x} \\ \end{align*}

3754

Problem 11

\begin{align*} y^{\prime \prime }+y&=\csc \left (x \right )+2 x^{2}+5 x +1 \\ \end{align*}

3755

Problem 12

\begin{align*} y^{\prime \prime }-y&=2 \tanh \left (x \right ) \\ \end{align*}

3756

Problem 13

\begin{align*} y^{\prime \prime }-2 m y^{\prime }+m^{2} y&=\frac {{\mathrm e}^{m x}}{x^{2}+1} \\ \end{align*}

3757

Problem 13

\begin{align*} y^{\prime \prime }-2 y^{\prime }+y&=\frac {4 \,{\mathrm e}^{x} \ln \left (x \right )}{x^{3}} \\ \end{align*}

3758

Problem 15

\begin{align*} y^{\prime \prime }+2 y^{\prime }+y&=\frac {{\mathrm e}^{-x}}{\sqrt {-x^{2}+4}} \\ \end{align*}

3759

Problem 16

\begin{align*} y^{\prime \prime }+2 y^{\prime }+17 y&=\frac {64 \,{\mathrm e}^{-x}}{3+\sin \left (4 x \right )^{2}} \\ \end{align*}

3760

Problem 17

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=\frac {4 \,{\mathrm e}^{-2 x}}{x^{2}+1}+2 x^{2}-1 \\ \end{align*}

3761

Problem 18

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=15 \,{\mathrm e}^{-2 x} \ln \left (x \right )+25 \cos \left (x \right ) \\ \end{align*}

3762

Problem 19

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }+3 y^{\prime }-y&=\frac {2 \,{\mathrm e}^{x}}{x^{2}} \\ \end{align*}

3763

Problem 20

\begin{align*} y^{\prime \prime \prime }-6 y^{\prime \prime }+12 y^{\prime }-8 y&=36 \,{\mathrm e}^{2 x} \ln \left (x \right ) \\ \end{align*}

3764

Problem 21

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }+3 y^{\prime }+y&=\frac {2 \,{\mathrm e}^{-x}}{x^{2}+1} \\ \end{align*}

3765

Problem 22

\begin{align*} y^{\prime \prime \prime }-6 y^{\prime \prime }+9 y^{\prime }&=12 \,{\mathrm e}^{3 x} \\ \end{align*}

3766

Problem 23

\begin{align*} y^{\prime \prime }-9 y&=F \left (x \right ) \\ \end{align*}

3767

Problem 24

\begin{align*} y^{\prime \prime }+5 y^{\prime }+4 y&=F \left (x \right ) \\ \end{align*}

3768

Problem 25

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=F \left (x \right ) \\ \end{align*}

3769

Problem 26

\begin{align*} y^{\prime \prime }+4 y^{\prime }-12 y&=F \left (x \right ) \\ \end{align*}

3770

Problem 27

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=5 x \,{\mathrm e}^{2 x} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

3771

Problem 28

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

1.10 Chapter 8, Linear differential equations of order n. Section 8.8, A Differential Equation with Nonconstant Coefficients. page 567

Table 1.19: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3772

Problem 14

\begin{align*} x^{2} y^{\prime \prime }+4 x y^{\prime }+2 y&=4 \ln \left (x \right ) \\ \end{align*}

3773

Problem 15

\begin{align*} x^{2} y^{\prime \prime }+4 x y^{\prime }+2 y&=\cos \left (x \right ) \\ \end{align*}

3774

Problem 16

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+9 y&=9 \ln \left (x \right ) \\ \end{align*}

3775

Problem 17

\begin{align*} x^{2} y^{\prime \prime }-x y^{\prime }+5 y&=8 x \ln \left (x \right )^{2} \\ \end{align*}

3776

Problem 18

\begin{align*} x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y&=x^{4} \sin \left (x \right ) \\ \end{align*}

3777

Problem 19

\begin{align*} x^{2} y^{\prime \prime }+6 x y^{\prime }+6 y&=4 \,{\mathrm e}^{2 x} \\ \end{align*}

3778

Problem 20

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=\frac {x^{2}}{\ln \left (x \right )} \\ \end{align*}

3779

Problem 21

\begin{align*} x^{2} y^{\prime \prime }-\left (2 m -1\right ) x y^{\prime }+m^{2} y&=x^{m} \ln \left (x \right )^{k} \\ \end{align*}

3780

Problem 22

\begin{align*} x^{2} y^{\prime \prime }-x y^{\prime }+5 y&=0 \\ y \left (1\right ) &= \sqrt {2} \\ y^{\prime }\left (1\right ) &= 3 \sqrt {2} \\ \end{align*}

3781

Problem 23

\begin{align*} t^{2} y^{\prime \prime }+t y^{\prime }+25 y&=0 \\ y \left (1\right ) &= \frac {3 \sqrt {3}}{2} \\ y^{\prime }\left (1\right ) &= {\frac {15}{2}} \\ \end{align*}

1.11 Chapter 8, Linear differential equations of order n. Section 8.9, Reduction of Order. page 572

Table 1.21: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3782

Problem 1

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=0 \\ \end{align*}

3783

Problem 2

\begin{align*} x y^{\prime \prime }+\left (1-2 x \right ) y^{\prime }+\left (x -1\right ) y&=0 \\ \end{align*}

3784

Problem 3

\begin{align*} x^{2} y^{\prime \prime }-2 x y^{\prime }+\left (x^{2}+2\right ) y&=0 \\ \end{align*}

3785

Problem 4

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-2 x y^{\prime }+2 y&=0 \\ \end{align*}

3786

Problem 5

\begin{align*} y^{\prime \prime }-\frac {y^{\prime }}{x}+4 x^{2} y&=0 \\ \end{align*}

3787

Problem 6

\begin{align*} 4 x^{2} y^{\prime \prime }+4 x y^{\prime }+\left (4 x^{2}-1\right ) y&=0 \\ \end{align*}

3788

Problem 10

\begin{align*} y^{\prime \prime }+y&=\csc \left (x \right ) \\ \end{align*}

3789

Problem 11

\begin{align*} x y^{\prime \prime }-\left (2 x +1\right ) y^{\prime }+2 y&=8 x^{2} {\mathrm e}^{2 x} \\ \end{align*}

3790

Problem 12

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=8 x^{4} \\ \end{align*}

3791

Problem 13

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&=15 \,{\mathrm e}^{3 x} \sqrt {x} \\ \end{align*}

3792

Problem 14

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=4 \,{\mathrm e}^{2 x} \ln \left (x \right ) \\ \end{align*}

3793

Problem 15

\begin{align*} 4 x^{2} y^{\prime \prime }+y&=\sqrt {x}\, \ln \left (x \right ) \\ \end{align*}

1.12 Chapter 8, Linear differential equations of order n. Section 8.10, Chapter review. page 575

Table 1.23: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3794

Problem 7

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }-4 y&=0 \\ \end{align*}

3795

Problem 8

\begin{align*} y^{\prime \prime \prime }+11 y^{\prime \prime }+36 y^{\prime }+26 y&=0 \\ \end{align*}

3796

Problem 18

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=4 \,{\mathrm e}^{-3 x} \\ \end{align*}

3797

Problem 19

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=4 \,{\mathrm e}^{-2 x} \\ \end{align*}

3798

Problem 20

\begin{align*} y^{\prime \prime \prime }-6 y^{\prime \prime }+25 y^{\prime }&=x^{2} \\ \end{align*}

3799

Problem 21

\begin{align*} y^{\prime \prime \prime }-6 y^{\prime \prime }+25 y^{\prime }&=\sin \left (4 x \right ) \\ \end{align*}

3800

Problem 22

\begin{align*} y^{\prime \prime \prime }+9 y^{\prime \prime }+24 y^{\prime }+16 y&=8 \,{\mathrm e}^{-x}+1 \\ \end{align*}

3801

Problem 27

\begin{align*} y^{\prime \prime }-4 y&=5 \,{\mathrm e}^{x} \\ \end{align*}

3802

Problem 28

\begin{align*} y^{\prime \prime }+2 y^{\prime }+y&=2 x \,{\mathrm e}^{-x} \\ \end{align*}

3803

Problem 29

\begin{align*} y^{\prime \prime }-y&=4 \,{\mathrm e}^{x} \\ \end{align*}

3804

Problem 30

\begin{align*} y^{\prime \prime }+y x&=\sin \left (x \right ) \\ \end{align*}

3805

Problem 31

\begin{align*} y^{\prime \prime }+4 y&=\ln \left (x \right ) \\ \end{align*}

3806

Problem 32

\begin{align*} y^{\prime \prime }+2 y^{\prime }-3 y&=5 \,{\mathrm e}^{x} \\ \end{align*}

3807

Problem 33

\begin{align*} y^{\prime \prime }+y&=\tan \left (x \right ) \\ \end{align*}

3808

Problem 34

\begin{align*} y^{\prime \prime }+y&=4 \cos \left (2 x \right )+3 \,{\mathrm e}^{x} \\ \end{align*}

1.13 Chapter 9, First order linear systems. Section 9.1, page 587

Table 1.25: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3809

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+3 x_{2} \left (t \right ) \\ \end{align*}

3810

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-3 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ \end{align*}

3811

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3812

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right )-6 x_{2} \left (t \right ) \\ \end{align*}

3813

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right ) \\ \end{align*}

3814

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )-3 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3815

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{2} \left (t \right )+x_{3} \left (t \right ) \\ \end{align*}

3816

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{2} \left (t \right )-3 x_{3} \left (t \right ) \\ \end{align*}

3817

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 3 \\ x_{2} \left (0\right ) &= 0 \\ \end{align*}

3818

10

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+5 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 0 \\ x_{2} \left (0\right ) &= 1 \\ \end{align*}

3819

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 1 \\ x_{2} \left (0\right ) &= 3 \\ \end{align*}

3820

12

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+2 x_{2} \left (t \right )+5 \,{\mathrm e}^{4 t} \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3821

13

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+x_{2} \left (t \right )+t \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+x_{2} \left (t \right )+1 \\ \end{align*}

3822

14

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right )+{\mathrm e}^{2 t} \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )-x_{2} \left (t \right )+5 \,{\mathrm e}^{2 t} \\ \end{align*}

3823

21

\begin{align*} x_{1}^{\prime }\left (t \right )&=-\tan \left (t \right ) x_{1} \left (t \right )+3 \cos \left (t \right )^{2} \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+\tan \left (t \right ) x_{2} \left (t \right )+2 \sin \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 4 \\ x_{2} \left (0\right ) &= 0 \\ \end{align*}

1.14 Chapter 9, First order linear systems. Section 9.2, page 592

Table 1.27: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3824

12

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-3 x_{2} \left (t \right ) \\ \end{align*}

3825

13

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-b x_{1} \left (t \right )-a x_{2} \left (t \right ) \\ \end{align*}

1.15 Chapter 9, First order linear systems. Section 9.3, page 598

Table 1.29: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3826

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right ) \\ \end{align*}

3827

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+3 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+5 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= -2 \\ x_{2} \left (0\right ) &= 1 \\ \end{align*}

3828

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3829

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3830

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ \end{align*}

3831

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=\frac {x_{1} \left (t \right )}{t} \\ x_{2}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ \end{align*}

3832

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=\frac {x_{1} \left (t \right )}{t}+x_{2} \left (t \right ) t \\ x_{2}^{\prime }\left (t \right )&=-\frac {x_{1} \left (t \right )}{t} \\ \end{align*}

1.16 Chapter 9, First order linear systems. Section 9.4 (Nondefective coefficient matrix), page 607

Table 1.31: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3833

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ \end{align*}

3834

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-7 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ \end{align*}

3835

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=-4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right ) \\ \end{align*}

3836

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=5 x_{1} \left (t \right )-5 x_{2} \left (t \right ) \\ \end{align*}

3837

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ \end{align*}

3838

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=5 x_{2} \left (t \right )-7 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{2} \left (t \right )-4 x_{3} \left (t \right ) \\ \end{align*}

3839

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+5 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+6 x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ \end{align*}

3840

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=5 x_{3} \left (t \right ) \\ \end{align*}

3841

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )+2 x_{3} \left (t \right ) \\ \end{align*}

3842

10

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+2 x_{2} \left (t \right )+6 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-2 x_{2} \left (t \right )-4 x_{3} \left (t \right ) \\ \end{align*}

3843

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{3} \left (t \right ) \\ \end{align*}

3844

12

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )-x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-3 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3845

13

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right )+x_{3} \left (t \right ) \\ \end{align*}

3846

14

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ \end{align*}

3847

15

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+2 x_{2} \left (t \right )+3 x_{3} \left (t \right )+4 x_{4} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+3 x_{2} \left (t \right )+2 x_{3} \left (t \right )+x_{4} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+5 x_{2} \left (t \right )+6 x_{3} \left (t \right )+7 x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )+6 x_{2} \left (t \right )+5 x_{3} \left (t \right )+4 x_{4} \left (t \right ) \\ \end{align*}

3848

16

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=x_{3} \left (t \right ) \\ \end{align*}

3849

17

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-3 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 3 \\ x_{2} \left (0\right ) &= 0 \\ \end{align*}

3850

18

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-6 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+5 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 2 \\ x_{2} \left (0\right ) &= 2 \\ \end{align*}

3851

19

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= -4 \\ x_{2} \left (0\right ) &= 4 \\ x_{3} \left (0\right ) &= 4 \\ \end{align*}

3852

20

\begin{align*} x_{1}^{\prime }\left (t \right )&=4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 1 \\ x_{2} \left (0\right ) &= 1 \\ \end{align*}

3853

28

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-b x_{1} \left (t \right )-a x_{2} \left (t \right ) \\ \end{align*}

1.17 Chapter 9, First order linear systems. Section 9.5 (Defective coefficient matrix), page 619

Table 1.33: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3854

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+3 x_{2} \left (t \right ) \\ \end{align*}

3855

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ \end{align*}

3856

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3857

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3858

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+2 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+3 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3859

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-3 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3860

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=15 x_{1} \left (t \right )-32 x_{2} \left (t \right )+12 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=8 x_{1} \left (t \right )-17 x_{2} \left (t \right )+6 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{3} \left (t \right ) \\ \end{align*}

3861

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=4 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{2} \left (t \right )+4 x_{3} \left (t \right ) \\ \end{align*}

3862

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{2} \left (t \right )+2 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-2 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3863

10

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+5 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=4 x_{3} \left (t \right ) \\ \end{align*}

3864

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-3 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ \end{align*}

3865

12

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+2 x_{3} \left (t \right )+x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=x_{2} \left (t \right )+2 x_{4} \left (t \right ) \\ \end{align*}

3866

13

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+3 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{3} \left (t \right )+x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=x_{2} \left (t \right )+x_{4} \left (t \right ) \\ \end{align*}

3867

14

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )-x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=x_{2} \left (t \right )+x_{3} \left (t \right ) \\ \end{align*}

3868

15

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-4 x_{2} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 0 \\ x_{2} \left (0\right ) &= -1 \\ \end{align*}

3869

16

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right )+4 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-3 x_{2} \left (t \right )+2 x_{3} \left (t \right ) \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= -2 \\ x_{2} \left (0\right ) &= 1 \\ x_{3} \left (0\right ) &= 1 \\ \end{align*}

1.18 Chapter 9, First order linear systems. Section 9.6 (Variation of parameters for linear systems), page 624

Table 1.35: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3870

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )-3 x_{2} \left (t \right )+{\mathrm e}^{2 t} \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right )+{\mathrm e}^{t} \\ \end{align*}

3871

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+2 x_{2} \left (t \right )+4 \,{\mathrm e}^{t} \\ \end{align*}

3872

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right )+t \,{\mathrm e}^{3 t} \\ x_{2}^{\prime }\left (t \right )&=3 x_{2} \left (t \right )+{\mathrm e}^{3 t} \\ \end{align*}

3873

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right )+20 \,{\mathrm e}^{3 t} \\ x_{2}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+x_{2} \left (t \right )+12 \,{\mathrm e}^{t} \\ \end{align*}

3874

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+2 x_{2} \left (t \right )+54 t \,{\mathrm e}^{3 t} \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )+4 x_{2} \left (t \right )+9 \,{\mathrm e}^{3 t} \\ \end{align*}

3875

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+4 x_{2} \left (t \right )+8 \sin \left (2 t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-2 x_{2} \left (t \right )+8 \cos \left (2 t \right ) \\ \end{align*}

3876

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+2 x_{2} \left (t \right )-3 \,{\mathrm e}^{t} \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right )+6 \,{\mathrm e}^{t} t \\ \end{align*}

3877

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )-{\mathrm e}^{t} \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-3 x_{2} \left (t \right )+2 x_{3} \left (t \right )+6 \,{\mathrm e}^{-t} \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )-2 x_{2} \left (t \right )+2 x_{3} \left (t \right )+{\mathrm e}^{t} \\ \end{align*}

3878

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-2 x_{2} \left (t \right )+2 x_{3} \left (t \right )-{\mathrm e}^{3 t} \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+4 x_{2} \left (t \right )-x_{3} \left (t \right )+4 \,{\mathrm e}^{3 t} \\ x_{3}^{\prime }\left (t \right )&=3 x_{3} \left (t \right )+3 \,{\mathrm e}^{3 t} \\ \end{align*}

3879

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-3 x_{2} \left (t \right )+34 \sin \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right )-2 x_{2} \left (t \right )+17 \cos \left (t \right ) \\ \end{align*}

1.19 Chapter 9, First order linear systems. Section 9.8 (Matrix exponential function), page 642

Table 1.37: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3880

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{2} \left (t \right ) \\ \end{align*}

3881

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ \end{align*}

3882

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=3 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{2} \left (t \right )+x_{3} \left (t \right ) \\ \end{align*}

3883

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3884

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ \end{align*}

3885

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{2} \left (t \right )-8 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{2} \left (t \right )-7 x_{3} \left (t \right ) \\ \end{align*}

3886

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+3 x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{2} \left (t \right )+2 x_{3} \left (t \right ) \\ \end{align*}

3887

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=-8 x_{1} \left (t \right )+6 x_{2} \left (t \right )-3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-12 x_{1} \left (t \right )+10 x_{2} \left (t \right )-3 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-2 x_{3} \left (t \right ) \\ \end{align*}

3888

10

\begin{align*} x_{1}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=6 x_{2} \left (t \right )-7 x_{3} \left (t \right )+3 x_{4} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=3 x_{3} \left (t \right )-x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=-4 x_{2} \left (t \right )+9 x_{3} \left (t \right )-3 x_{4} \left (t \right ) \\ \end{align*}

3889

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{2} \left (t \right )-x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=x_{2} \left (t \right )+x_{3} \left (t \right ) \\ \end{align*}

1.20 Chapter 9, First order linear systems. Section 9.11 (Chapter review), page 665

Table 1.39: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3890

1

\begin{align*} x_{1}^{\prime }\left (t \right )&=\left (2 t -1\right ) x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&={\mathrm e}^{-t^{2}+t} x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3891

2

\begin{align*} x_{1}^{\prime }\left (t \right )&=t \cot \left (t^{2}\right ) x_{1} \left (t \right )+\frac {t \cos \left (t^{2}\right ) x_{3} \left (t \right )}{2} \\ x_{2}^{\prime }\left (t \right )&=\frac {x_{2} \left (t \right )}{t}-x_{3} \left (t \right )+2-t \sin \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=\csc \left (t^{2}\right ) x_{1} \left (t \right )+x_{2} \left (t \right )-x_{3} \left (t \right )+1-\cos \left (t \right ) t \\ \end{align*}

3892

3

\begin{align*} x_{1}^{\prime }\left (t \right )&=-6 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=6 x_{1} \left (t \right )-5 x_{2} \left (t \right ) \\ \end{align*}

3893

4

\begin{align*} x_{1}^{\prime }\left (t \right )&=9 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=5 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ \end{align*}

3894

5

\begin{align*} x_{1}^{\prime }\left (t \right )&=10 x_{1} \left (t \right )-4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ \end{align*}

3895

6

\begin{align*} x_{1}^{\prime }\left (t \right )&=-8 x_{1} \left (t \right )+5 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-5 x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ \end{align*}

3896

7

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+4 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right )-5 x_{3} \left (t \right ) \\ \end{align*}

3897

8

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )-7 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=6 x_{1} \left (t \right )+6 x_{2} \left (t \right )+4 x_{3} \left (t \right ) \\ \end{align*}

3898

9

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )+13 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-3 x_{2} \left (t \right ) \\ \end{align*}

3899

10

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-10 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=5 x_{1} \left (t \right )+11 x_{2} \left (t \right ) \\ \end{align*}

3900

11

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-5 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )-9 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=3 x_{3} \left (t \right ) \\ \end{align*}

3901

12

\begin{align*} x_{1}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+5 x_{2} \left (t \right )-9 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=5 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ \end{align*}

3902

13

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-2 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-4 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+2 x_{2} \left (t \right )-3 x_{3} \left (t \right ) \\ \end{align*}

3903

14

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-4 x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-9 x_{1} \left (t \right )-3 x_{2} \left (t \right )-9 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+4 x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ \end{align*}

3904

15

\begin{align*} x_{1}^{\prime }\left (t \right )&=-17 x_{1} \left (t \right )-42 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-7 x_{1} \left (t \right )+4 x_{2} \left (t \right )-14 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )+18 x_{3} \left (t \right ) \\ \end{align*}

3905

16

\begin{align*} x_{1}^{\prime }\left (t \right )&=-16 x_{1} \left (t \right )+30 x_{2} \left (t \right )-18 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-8 x_{1} \left (t \right )+8 x_{2} \left (t \right )+16 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=8 x_{1} \left (t \right )-15 x_{2} \left (t \right )+9 x_{3} \left (t \right ) \\ \end{align*}

3906

17

\begin{align*} x_{1}^{\prime }\left (t \right )&=-7 x_{1} \left (t \right )-6 x_{2} \left (t \right )-7 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-3 x_{2} \left (t \right )-3 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )+6 x_{2} \left (t \right )+7 x_{3} \left (t \right ) \\ \end{align*}

3907

18

\begin{align*} x_{1}^{\prime }\left (t \right )&=3 x_{1} \left (t \right )-x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+6 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right )+6 x_{3} \left (t \right ) \\ \end{align*}

3908

19

\begin{align*} x_{1}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-4 x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right )-5 x_{2} \left (t \right )-6 x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+8 x_{2} \left (t \right )+7 x_{3} \left (t \right ) \\ \end{align*}

3909

20

\begin{align*} x_{1}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )-2 x_{2} \left (t \right )+2 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{2} \left (t \right )-x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{1} \left (t \right )+x_{2} \left (t \right )+4 x_{3} \left (t \right ) \\ \end{align*}

3910

21

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-x_{2} \left (t \right )-2 x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ \end{align*}

3911

22

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{3} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=x_{1} \left (t \right ) \\ \end{align*}

3912

23

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+13 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{3} \left (t \right )+4 x_{4} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=2 x_{4} \left (t \right ) \\ \end{align*}

3913

24

\begin{align*} x_{1}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )-x_{4} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=6 x_{2} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=-x_{3} \left (t \right ) \\ x_{4}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+5 x_{4} \left (t \right ) \\ \end{align*}

3914

25

\begin{align*} x_{1}^{\prime }\left (t \right )&=-6 x_{1} \left (t \right )+x_{2} \left (t \right )+1 \\ x_{2}^{\prime }\left (t \right )&=6 x_{1} \left (t \right )-5 x_{2} \left (t \right )+{\mathrm e}^{-t} \\ \end{align*}

3915

26

\begin{align*} x_{1}^{\prime }\left (t \right )&=9 x_{1} \left (t \right )-2 x_{2} \left (t \right )+9 t \\ x_{2}^{\prime }\left (t \right )&=5 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ \end{align*}

3916

27

\begin{align*} x_{1}^{\prime }\left (t \right )&=10 x_{1} \left (t \right )-4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+2 x_{2} \left (t \right )+\frac {{\mathrm e}^{6 t}}{t} \\ \end{align*}

3917

28

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-4 x_{2} \left (t \right )+3 x_{3} \left (t \right )+{\mathrm e}^{6 t} \\ x_{2}^{\prime }\left (t \right )&=-9 x_{1} \left (t \right )-3 x_{2} \left (t \right )-9 x_{3} \left (t \right )+1 \\ x_{3}^{\prime }\left (t \right )&=4 x_{1} \left (t \right )+4 x_{2} \left (t \right )+3 x_{3} \left (t \right ) \\ \end{align*}

3918

29

\begin{align*} x_{1}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )-2 x_{2} \left (t \right )+x_{3} \left (t \right )+t \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-4 x_{2} \left (t \right )+x_{3} \left (t \right ) \\ x_{3}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+2 x_{2} \left (t \right )-3 x_{3} \left (t \right )+1 \\ \end{align*}

3919

34

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=8 x_{1} \left (t \right )+x_{2} \left (t \right ) \\ \end{align*}

3920

35

\begin{align*} x_{1}^{\prime }\left (t \right )&=-6 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-5 x_{2} \left (t \right ) \\ \end{align*}

3921

36

\begin{align*} x_{1}^{\prime }\left (t \right )&=5 x_{1} \left (t \right )+9 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ \end{align*}

3922

37

\begin{align*} x_{1}^{\prime }\left (t \right )&=-4 x_{1} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=-4 x_{2} \left (t \right ) \\ \end{align*}

3923

38

\begin{align*} x_{1}^{\prime }\left (t \right )&=7 x_{1} \left (t \right )-2 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )+4 x_{2} \left (t \right ) \\ \end{align*}

3924

39

\begin{align*} x_{1}^{\prime }\left (t \right )&=-3 x_{1} \left (t \right )-5 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-7 x_{2} \left (t \right ) \\ \end{align*}

3925

40

\begin{align*} x_{1}^{\prime }\left (t \right )&=-2 x_{1} \left (t \right )-x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=x_{1} \left (t \right )-4 x_{2} \left (t \right ) \\ \end{align*}

3926

41

\begin{align*} x_{1}^{\prime }\left (t \right )&=10 x_{1} \left (t \right )-8 x_{2} \left (t \right ) \\ x_{2}^{\prime }\left (t \right )&=2 x_{1} \left (t \right )+2 x_{2} \left (t \right ) \\ \end{align*}

1.21 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.4. page 689

Table 1.41: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3927

Problem 1

\begin{align*} -2 y+y^{\prime }&=6 \,{\mathrm e}^{5 t} \\ y \left (0\right ) &= 3 \\ \end{align*}
Using Laplace transform method.

3928

Problem 2

\begin{align*} y+y^{\prime }&=8 \,{\mathrm e}^{3 t} \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3929

Problem 3

\begin{align*} 3 y+y^{\prime }&=2 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 3 \\ \end{align*}
Using Laplace transform method.

3930

Problem 4

\begin{align*} y^{\prime }+2 y&=4 t \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3931

Problem 5

\begin{align*} -y+y^{\prime }&=6 \cos \left (t \right ) \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3932

Problem 6

\begin{align*} -y+y^{\prime }&=5 \sin \left (2 t \right ) \\ y \left (0\right ) &= -1 \\ \end{align*}
Using Laplace transform method.

3933

Problem 7

\begin{align*} y+y^{\prime }&=5 \,{\mathrm e}^{t} \sin \left (t \right ) \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3934

Problem 8

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}
Using Laplace transform method.

3935

Problem 9

\begin{align*} y^{\prime \prime }+4 y&=0 \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3936

Problem 10

\begin{align*} y^{\prime \prime }-3 y^{\prime }+2 y&=4 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3937

Problem 11

\begin{align*} y^{\prime \prime }-y^{\prime }-12 y&=36 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 12 \\ \end{align*}
Using Laplace transform method.

3938

Problem 12

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=10 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3939

Problem 13

\begin{align*} y^{\prime \prime }-3 y^{\prime }+2 y&=4 \,{\mathrm e}^{3 t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3940

Problem 14

\begin{align*} y^{\prime \prime }-2 y^{\prime }&=30 \,{\mathrm e}^{-3 t} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3941

Problem 15

\begin{align*} y^{\prime \prime }-y&=12 \,{\mathrm e}^{2 t} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3942

Problem 16

\begin{align*} y^{\prime \prime }+4 y&=10 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 4 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3943

Problem 17

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=12-6 \,{\mathrm e}^{t} \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= -3 \\ \end{align*}
Using Laplace transform method.

3944

Problem 18

\begin{align*} y^{\prime \prime }-y&=6 \cos \left (t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}
Using Laplace transform method.

3945

Problem 19

\begin{align*} y^{\prime \prime }-9 y&=13 \sin \left (2 t \right ) \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3946

Problem 20

\begin{align*} y^{\prime \prime }-y&=8 \sin \left (t \right )-6 \cos \left (t \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}
Using Laplace transform method.

3947

Problem 21

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=10 \cos \left (t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}
Using Laplace transform method.

3948

Problem 22

\begin{align*} y^{\prime \prime }+5 y^{\prime }+4 y&=20 \sin \left (2 t \right ) \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3949

Problem 23

\begin{align*} y^{\prime \prime }+5 y^{\prime }+4 y&=20 \sin \left (2 t \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -2 \\ \end{align*}
Using Laplace transform method.

3950

Problem 24

\begin{align*} y^{\prime \prime }-3 y^{\prime }+2 y&=3 \cos \left (t \right )+\sin \left (t \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3951

Problem 25

\begin{align*} y^{\prime \prime }+4 y&=9 \sin \left (t \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}
Using Laplace transform method.

3952

Problem 26

\begin{align*} y^{\prime \prime }+y&=6 \cos \left (2 t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3953

Problem 27

\begin{align*} y^{\prime \prime }+9 y&=7 \sin \left (4 t \right )+14 \cos \left (4 t \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3954

Problem 28

\begin{align*} y^{\prime \prime }-y&=0 \\ y \left (0\right ) &= A \\ y^{\prime }\left (0\right ) &= B \\ \end{align*}
Using Laplace transform method.

1.22 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.7. page 704

Table 1.43: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3955

Problem 27

\begin{align*} y^{\prime }+2 y&=2 \operatorname {Heaviside}\left (t -1\right ) \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3956

Problem 28

\begin{align*} -2 y+y^{\prime }&=\operatorname {Heaviside}\left (t -2\right ) {\mathrm e}^{t -2} \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3957

Problem 29

\begin{align*} -y+y^{\prime }&=4 \operatorname {Heaviside}\left (t -\frac {\pi }{4}\right ) \sin \left (t +\frac {\pi }{4}\right ) \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3958

Problem 30

\begin{align*} y^{\prime }+2 y&=\operatorname {Heaviside}\left (t -\pi \right ) \sin \left (2 t \right ) \\ y \left (0\right ) &= 3 \\ \end{align*}
Using Laplace transform method.

3959

Problem 31

\begin{align*} 3 y+y^{\prime }&=\left \{\begin {array}{cc} 1 & 0\le t <1 \\ 0 & 1\le t \end {array}\right . \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3960

Problem 32

\begin{align*} y^{\prime }-3 y&=\left \{\begin {array}{cc} \sin \left (t \right ) & 0\le t <\frac {\pi }{2} \\ 1 & \frac {\pi }{2}\le t \end {array}\right . \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3961

Problem 33

\begin{align*} y^{\prime }-3 y&=-10 \,{\mathrm e}^{-t +a} \sin \left (-2 t +2 a \right ) \operatorname {Heaviside}\left (t -a \right ) \\ y \left (0\right ) &= 5 \\ \end{align*}
Using Laplace transform method.

3962

Problem 34

\begin{align*} y^{\prime \prime }-y&=\operatorname {Heaviside}\left (t -1\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3963

Problem 35

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=1-3 \operatorname {Heaviside}\left (t -2\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -2 \\ \end{align*}
Using Laplace transform method.

3964

Problem 36

\begin{align*} y^{\prime \prime }-4 y&=\operatorname {Heaviside}\left (t -1\right )-\operatorname {Heaviside}\left (t -2\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}
Using Laplace transform method.

3965

Problem 37

\begin{align*} y^{\prime \prime }+y&=t -\operatorname {Heaviside}\left (t -1\right ) \left (t -1\right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3966

Problem 38

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=-10 \operatorname {Heaviside}\left (t -\frac {\pi }{4}\right ) \cos \left (t +\frac {\pi }{4}\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3967

Problem 39

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=30 \operatorname {Heaviside}\left (t -1\right ) {\mathrm e}^{1-t} \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= -4 \\ \end{align*}
Using Laplace transform method.

3968

Problem 40

\begin{align*} y^{\prime \prime }+4 y^{\prime }+5 y&=5 \operatorname {Heaviside}\left (-3+t \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3969

Problem 41

\begin{align*} y^{\prime \prime }-2 y^{\prime }+5 y&=2 \sin \left (t \right )+\operatorname {Heaviside}\left (t -\frac {\pi }{2}\right ) \left (1+\cos \left (t \right )\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3970

Problem 46 part a

\begin{align*} -y+y^{\prime }&=\left \{\begin {array}{cc} 2 & 0\le t <1 \\ -1 & 1\le t \end {array}\right . \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3971

Problem 46 part b

\begin{align*} -y+y^{\prime }&=\left \{\begin {array}{cc} 2 & 0\le t <1 \\ -1 & 1\le t \end {array}\right . \\ y \left (0\right ) &= 1 \\ \end{align*}

1.23 Chapter 10, The Laplace Transform and Some Elementary Applications. Exercises for 10.8. page 710

Table 1.45: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3972

Problem 1

\begin{align*} y+y^{\prime }&=\delta \left (t -5\right ) \\ y \left (0\right ) &= 3 \\ \end{align*}
Using Laplace transform method.

3973

Problem 2

\begin{align*} -2 y+y^{\prime }&=\delta \left (t -2\right ) \\ y \left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3974

Problem 3

\begin{align*} y^{\prime }+4 y&=3 \delta \left (t -1\right ) \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3975

Problem 4

\begin{align*} y^{\prime }-5 y&=2 \,{\mathrm e}^{-t}+\delta \left (-3+t \right ) \\ y \left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3976

Problem 5

\begin{align*} y^{\prime \prime }-3 y^{\prime }+2 y&=\delta \left (t -1\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3977

Problem 6

\begin{align*} y^{\prime \prime }-4 y&=\delta \left (-3+t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

3978

Problem 7

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=\delta \left (t -\frac {\pi }{2}\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

3979

Problem 8

\begin{align*} y^{\prime \prime }-4 y^{\prime }+13 y&=\delta \left (t -\frac {\pi }{4}\right ) \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3980

Problem 9

\begin{align*} y^{\prime \prime }+4 y^{\prime }+3 y&=\delta \left (t -2\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}
Using Laplace transform method.

3981

Problem 10

\begin{align*} y^{\prime \prime }+6 y^{\prime }+13 y&=\delta \left (t -\frac {\pi }{4}\right ) \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}
Using Laplace transform method.

3982

Problem 11

\begin{align*} y^{\prime \prime }+9 y&=15 \sin \left (2 t \right )+\delta \left (t -\frac {\pi }{6}\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3983

Problem 12

\begin{align*} y^{\prime \prime }+16 y&=4 \cos \left (3 t \right )+\delta \left (t -\frac {\pi }{3}\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

3984

Problem 13

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=4 \sin \left (t \right )+\delta \left (t -\frac {\pi }{6}\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

1.24 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.2. page 739

Table 1.47: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

3985

Problem 1

\begin{align*} y^{\prime \prime }-y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3986

Problem 2

\begin{align*} y^{\prime \prime }+2 x y^{\prime }+4 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3987

Problem 3

\begin{align*} y^{\prime \prime }-2 x y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3988

Problem 4

\begin{align*} y^{\prime \prime }-x^{2} y^{\prime }-2 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

3989

Problem 5

\begin{align*} y^{\prime \prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

3990

Problem 6

\begin{align*} y^{\prime \prime }+x y^{\prime }+3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3991

Problem 7

\begin{align*} y^{\prime \prime }-x^{2} y^{\prime }-3 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

3992

Problem 8

\begin{align*} y^{\prime \prime }+2 x^{2} y^{\prime }+2 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

3993

Problem 9

\begin{align*} \left (x^{2}-3\right ) y^{\prime \prime }-3 x y^{\prime }-5 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3994

Problem 10

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+4 x y^{\prime }+2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3995

Problem 11

\begin{align*} \left (-4 x^{2}+1\right ) y^{\prime \prime }-20 x y^{\prime }-16 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3996

Problem 12

\begin{align*} \left (x^{2}-1\right ) y^{\prime \prime }-6 x y^{\prime }+12 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3997

Problem 13

\begin{align*} y^{\prime \prime }+2 y^{\prime }+4 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

3998

Problem 14

\begin{align*} y^{\prime \prime }+x y^{\prime }+\left (x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

3999

Problem 15

\begin{align*} y^{\prime \prime }-y \,{\mathrm e}^{x}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4000

Problem 17

\begin{align*} x y^{\prime \prime }-\left (x -1\right ) y^{\prime }-y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4001

Problem 18

\begin{align*} \left (2 x^{2}+1\right ) y^{\prime \prime }+7 x y^{\prime }+2 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Series expansion around \(x=0\).

4002

Problem 19

\begin{align*} 4 y^{\prime \prime }+x y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Series expansion around \(x=0\).

4003

Problem 20

\begin{align*} y^{\prime \prime }+2 x^{2} y^{\prime }+y x&=2 \cos \left (x \right ) \\ \end{align*}
Series expansion around \(x=0\).

4004

Problem 21

\begin{align*} y^{\prime \prime }+x y^{\prime }-4 y&=6 \,{\mathrm e}^{x} \\ \end{align*}
Series expansion around \(x=0\).

1.25 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.4. page 758

Table 1.49: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

4005

1

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{1-x}+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4006

3

\begin{align*} x^{2} y^{\prime \prime }+\frac {x y^{\prime }}{\left (-x^{2}+1\right )^{2}}+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4007

4

\begin{align*} \left (x -2\right )^{2} y^{\prime \prime }+\left (x -2\right ) {\mathrm e}^{x} y^{\prime }+\frac {4 y}{x}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4008

5

\begin{align*} y^{\prime \prime }+\frac {2 y^{\prime }}{x \left (x -3\right )}-\frac {y}{x^{3} \left (x +3\right )}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4009

6

\begin{align*} x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-7 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4010

7

\begin{align*} 4 x^{2} y^{\prime \prime }+{\mathrm e}^{x} y^{\prime } x -y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4011

8

\begin{align*} 4 x y^{\prime \prime }-x y^{\prime }+2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4012

9

\begin{align*} x^{2} y^{\prime \prime }-x \cos \left (x \right ) y^{\prime }+5 y \,{\mathrm e}^{2 x}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4013

10

\begin{align*} 4 x^{2} y^{\prime \prime }+3 x y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4014

11

\begin{align*} 6 x^{2} y^{\prime \prime }+x \left (1+18 x \right ) y^{\prime }+\left (1+12 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4015

12

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-\left (x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4016

13

\begin{align*} 2 x y^{\prime \prime }+y^{\prime }-2 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4017

14

\begin{align*} 3 x^{2} y^{\prime \prime }-x \left (8+x \right ) y^{\prime }+6 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4018

15

\begin{align*} 2 x^{2} y^{\prime \prime }-x \left (2 x +1\right ) y^{\prime }+2 \left (4 x -1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4019

16

\begin{align*} x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-\left (5+x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4020

17

\begin{align*} 3 x^{2} y^{\prime \prime }+x \left (7+3 x \right ) y^{\prime }+\left (1+6 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4021

18

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (1-x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4022

19

\begin{align*} 3 x^{2} y^{\prime \prime }+x \left (3 x^{2}+1\right ) y^{\prime }-2 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4023

20

\begin{align*} 4 x^{2} y^{\prime \prime }-4 x^{2} y^{\prime }+\left (2 x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4024

21

\begin{align*} x^{2} y^{\prime \prime }+x \left (3-2 x \right ) y^{\prime }+\left (1-2 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

1.26 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.5. page 771

Table 1.51: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

4025

Example 11.5.2 page 763

\begin{align*} x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+\left (4-x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4026

Example 11.5.4 page 765

\begin{align*} x^{2} y^{\prime \prime }+x \left (-x +3\right ) y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4027

Example 11.5.5 page 768

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-\left (x +4\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4028

(a)

\begin{align*} x^{2} y^{\prime \prime }-\left (-x^{2}+x \right ) y^{\prime }+\left (x^{3}+1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4029

(b)

\begin{align*} x^{2} y^{\prime \prime }-\left (2 \sqrt {5}-1\right ) x y^{\prime }+\left (\frac {19}{4}-3 x^{2}\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4030

(c)

\begin{align*} x^{2} y^{\prime \prime }+\left (-2 x^{5}+9 x \right ) y^{\prime }+\left (10 x^{4}+5 x^{2}+25\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4031

(d)

\begin{align*} x^{2} y^{\prime \prime }+\left (4 x +\frac {1}{2} x^{2}-\frac {1}{3} x^{3}\right ) y^{\prime }-\frac {7 y}{4}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4032

(e)

\begin{align*} x^{2} y^{\prime \prime }+x^{2} y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4033

1

\begin{align*} x^{2} y^{\prime \prime }+x \left (x -3\right ) y^{\prime }+\left (4-x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4034

2

\begin{align*} 4 x^{2} y^{\prime \prime }+2 x^{2} y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4035

3

\begin{align*} x^{2} y^{\prime \prime }+x \cos \left (x \right ) y^{\prime }-2 y \,{\mathrm e}^{x}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4036

4

\begin{align*} x^{2} y^{\prime \prime }+x^{2} y^{\prime }-\left (x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4037

5

\begin{align*} x^{2} y^{\prime \prime }+2 x^{2} y^{\prime }+\left (x -\frac {3}{4}\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4038

6

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (2 x -1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4039

7

\begin{align*} x^{2} y^{\prime \prime }+x^{3} y^{\prime }-\left (x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4040

8

\begin{align*} x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+7 \,{\mathrm e}^{x} y^{\prime } x +9 \left (1+\tan \left (x \right )\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4041

11

\begin{align*} x^{2} \left (x +1\right ) y^{\prime \prime }+x^{2} y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4042

12

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }+\left (1-x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4043

13

\begin{align*} x y^{\prime \prime }-y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4044

14

\begin{align*} x^{2} y^{\prime \prime }+x \left (x^{2}+6\right ) y^{\prime }+6 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4045

15

\begin{align*} x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4046

16

\begin{align*} 4 x^{2} y^{\prime \prime }+\left (1-4 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4047

17

\begin{align*} x y^{\prime \prime }+y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4048

18

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-\left (x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4049

19

\begin{align*} x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+4 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4050

20

\begin{align*} x^{2} y^{\prime \prime }-x^{2} y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4051

21

\begin{align*} x^{2} y^{\prime \prime }-x^{2} y^{\prime }-\left (3 x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4052

22

\begin{align*} x^{2} y^{\prime \prime }+x \left (5-x \right ) y^{\prime }+4 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4053

23

\begin{align*} 4 x^{2} y^{\prime \prime }+4 x \left (1-x \right ) y^{\prime }+\left (2 x -9\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4054

24

\begin{align*} x^{2} y^{\prime \prime }+2 x \left (x +2\right ) y^{\prime }+2 \left (x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4055

25

\begin{align*} x^{2} y^{\prime \prime }-x \left (1-x \right ) y^{\prime }+\left (1-x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4056

26

\begin{align*} 4 x^{2} y^{\prime \prime }+4 x \left (2 x +1\right ) y^{\prime }+\left (4 x -1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4057

27

\begin{align*} 4 x^{2} y^{\prime \prime }-\left (4 x +3\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4058

28

\begin{align*} x y^{\prime \prime }-x y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4059

29

\begin{align*} x^{2} y^{\prime \prime }+x \left (x +4\right ) y^{\prime }+\left (x +2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

1.27 Chapter 11, Series Solutions to Linear Differential Equations. Exercises for 11.6. page 783

Table 1.53: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

4060

2

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {9}{4}\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4061

3

\begin{align*} x y^{\prime \prime }-y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

1.28 Chapter 11, Series Solutions to Linear Differential Equations. Additional problems. Section 11.7. page 788

Table 1.55: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

4062

1

\begin{align*} y^{\prime \prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4063

2

\begin{align*} y^{\prime \prime }-x^{2} y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4064

3

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-6 x y^{\prime }-4 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4065

4

\begin{align*} x y^{\prime \prime }+y^{\prime }+2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4066

5

\begin{align*} x y^{\prime \prime }+2 y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4067

6

\begin{align*} 2 x y^{\prime \prime }+5 \left (1-2 x \right ) y^{\prime }-5 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4068

7

\begin{align*} x y^{\prime \prime }+y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

4069

8

\begin{align*} \left (4 x^{2}+1\right ) y^{\prime \prime }-8 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4070

9

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {1}{4}\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4071

10

\begin{align*} 4 x y^{\prime \prime }+3 y^{\prime }+3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4072

11

\begin{align*} x^{2} y^{\prime \prime }+\frac {3 x y^{\prime }}{2}-\frac {\left (x +1\right ) y}{2}&=0 \\ \end{align*}
Series expansion around \(x=0\).

4073

12

\begin{align*} x^{2} y^{\prime \prime }-x \left (2-x \right ) y^{\prime }+\left (x^{2}+2\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4074

13

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 \left (x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

4075

20

\begin{align*} y^{\prime \prime }+\left (1-\frac {3}{4 x^{2}}\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).