2.3.71 Problems 7001 to 7100

Table 2.685: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

7001

20415

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

0.450

7002

20509

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

0.450

7003

20708

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

0.450

7004

20942

\begin{align*} x^{\prime }&=8 x-5 y \\ y^{\prime }&=16 x+8 y \\ \end{align*}
With initial conditions
\begin{align*} x \left (0\right ) &= 1 \\ y \left (0\right ) &= -1 \\ \end{align*}

0.450

7005

21315

\begin{align*} x_{1}^{\prime }&=-x_{1} \\ x_{2}^{\prime }&=-2 x_{2} \\ x_{3}^{\prime }&=x_{3} \\ \end{align*}

0.450

7006

21639

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

0.450

7007

23805

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

0.450

7008

24652

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

0.450

7009

154

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

0.451

7010

463

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

0.451

7011

8133

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

0.451

7012

9251

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

0.451

7013

9524

\begin{align*} y^{\prime \prime }+5 y^{\prime } x +\sqrt {x}\, y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.451

7014

13191

\(\left [\begin {array}{ccc} 2 & 0 & 0 \\ -6 & 11 & 2 \\ 6 & -15 & 0 \end {array}\right ]\)

N/A

N/A

N/A

0.451

7015

15269

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

0.451

7016

16114

\begin{align*} y^{\prime \prime }+6 y^{\prime }+8 y&=\cos \left (t \right ) \\ \end{align*}

0.451

7017

16115

\begin{align*} y^{\prime \prime }+6 y^{\prime }+8 y&=-4 \cos \left (3 t \right ) \\ \end{align*}

0.451

7018

17699

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

0.451

7019

18444

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

0.451

7020

21743

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

0.451

7021

886

\begin{align*} y^{\prime \prime }+9 y&=\sin \left (2 x \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

0.452

7022

6117

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

0.452

7023

6373

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

0.452

7024

9032

\begin{align*} 5 x^{3} y^{2}+2 y+\left (3 x^{4} y+2 x \right ) y^{\prime }&=0 \\ \end{align*}

0.452

7025

16625

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=\left (12 x -4\right ) {\mathrm e}^{-5 x} \\ \end{align*}

0.452

7026

16635

\begin{align*} y^{\prime \prime }-10 y^{\prime }+25 y&=6 \,{\mathrm e}^{-5 x} \\ \end{align*}

0.452

7027

16829

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

0.452

7028

18433

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

0.452

7029

18830

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

0.452

7030

19246

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

0.452

7031

21245

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

0.452

7032

22139

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

0.452

7033

22644

\begin{align*} 4 i^{\prime \prime }-12 i^{\prime }+9 i&=0 \\ \end{align*}

0.452

7034

23111

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

0.452

7035

23806

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

0.452

7036

639

\begin{align*} x_{1}^{\prime }&=4 x_{1}+x_{2}+x_{3} \\ x_{2}^{\prime }&=x_{1}+4 x_{2}+x_{3} \\ x_{3}^{\prime }&=x_{1}+x_{2}+4 x_{3} \\ \end{align*}

0.453

7037

1846

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

0.453

7038

2233

\begin{align*} x^{4} y^{\prime \prime \prime \prime }+5 x^{3} y^{\prime \prime \prime }-3 x^{2} y^{\prime \prime }-6 y^{\prime } x +6 y&=40 x^{3} \\ y \left (-1\right ) &= -1 \\ y^{\prime }\left (-1\right ) &= -7 \\ y^{\prime \prime }\left (-1\right ) &= -1 \\ y^{\prime \prime \prime }\left (-1\right ) &= -31 \\ \end{align*}

0.453

7039

2265

\begin{align*} y_{1}^{\prime }&=-11 y_{1}+8 y_{2} \\ y_{2}^{\prime }&=-2 y_{1}-3 y_{2} \\ \end{align*}
With initial conditions
\begin{align*} y_{1} \left (0\right ) &= 6 \\ y_{2} \left (0\right ) &= 2 \\ \end{align*}

0.453

7040

2389

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

0.453

7041

6477

\begin{align*} 2 y y^{\prime \prime }&=-a^{2}-4 \left (-x^{2}+b \right ) y^{2}+8 x y^{3}+3 y^{4}+{y^{\prime }}^{2} \\ \end{align*}

0.453

7042

7368

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

0.453

7043

15179

\begin{align*} \left (x^{2}+2 x \right ) y^{\prime \prime }+\left (x^{2}+x +10\right ) y^{\prime }&=\left (25-6 x \right ) y \\ \end{align*}

0.453

7044

16634

\begin{align*} y^{\prime \prime }-10 y^{\prime }+25 y&=6 \,{\mathrm e}^{5 x} \\ \end{align*}

0.453

7045

21971

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

0.453

7046

23283

\begin{align*} 3 y^{\prime \prime }+48 y^{\prime }+192 y&=0 \\ \end{align*}

0.453

7047

23394

\begin{align*} x^{6} y^{\left (6\right )}-12 x^{4} y^{\prime \prime \prime \prime }&=0 \\ \end{align*}

0.453

7048

23772

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

0.453

7049

24540

\begin{align*} 4 y+y^{\prime \prime }&=15 \,{\mathrm e}^{x}-8 x^{2} \\ \end{align*}

0.453

7050

24882

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

0.453

7051

25118

\begin{align*} y^{\prime \prime }+4 y&=1+{\mathrm e}^{t} \\ \end{align*}

0.453

7052

25175

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

0.453

7053

25569

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

0.453

7054

25588

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

0.453

7055

485

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

0.454

7056

919

\begin{align*} x^{\prime \prime }+6 x^{\prime }+13 x&=10 \sin \left (5 t \right ) \\ x \left (0\right ) &= 0 \\ x^{\prime }\left (0\right ) &= 0 \\ \end{align*}

0.454

7057

1922

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

0.454

7058

2559

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

0.454

7059

2595

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

0.454

7060

3849

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

0.454

7061

4554

\begin{align*} x^{\prime }-2 x-y&=2 \,{\mathrm e}^{t} \\ x-y^{\prime }+2 y&=3 \,{\mathrm e}^{4 t} \\ \end{align*}
With initial conditions
\begin{align*} x \left (0\right ) &= x_{0} \\ y \left (0\right ) &= y_{0} \\ \end{align*}

0.454

7062

6230

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

0.454

7063

6721

\begin{align*} 4 x^{2} y^{\prime }-4 x^{3} y^{\prime \prime }+4 x^{4} y^{\prime \prime \prime }&=1 \\ \end{align*}

0.454

7064

8615

\begin{align*} 16 \left (x +1\right )^{2} y^{\prime \prime }+3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.454

7065

9343

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

0.454

7066

12682

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

0.454

7067

17406

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

0.454

7068

17483

\begin{align*} y^{\prime \prime }-7 y^{\prime }+10 y&={\mathrm e}^{3 t} \\ \end{align*}

0.454

7069

19557

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

0.454

7070

19584

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

0.454

7071

20856

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

0.454

7072

20896

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

0.454

7073

23358

\begin{align*} 5 y^{\prime \prime }+10 y^{\prime }+20 y&=0 \\ \end{align*}

0.454

7074

24554

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

0.454

7075

6340

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

0.455

7076

15008

\begin{align*} x^{\prime }&=7 x-5 y \\ y^{\prime }&=10 x-3 y \\ \end{align*}

0.455

7077

15175

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

0.455

7078

20368

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

0.455

7079

20939

\begin{align*} x^{\prime }&=4 x-13 y \\ y^{\prime }&=2 x-6 y \\ \end{align*}
With initial conditions
\begin{align*} x \left (0\right ) &= 2 \\ y \left (0\right ) &= 0 \\ \end{align*}

0.455

7080

22624

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

0.455

7081

23587

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

0.455

7082

23765

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

0.455

7083

25609

\begin{align*} y^{\prime \prime }+3 y^{\prime }-4 y&=t \,{\mathrm e}^{c t} \\ \end{align*}

0.455

7084

584

\begin{align*} x^{\prime }&=-y \\ y^{\prime }&=13 x+4 y \\ \end{align*}
With initial conditions
\begin{align*} x \left (0\right ) &= 0 \\ y \left (0\right ) &= 3 \\ \end{align*}

0.456

7085

3500

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

0.456

7086

6548

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

0.456

7087

7719

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

0.456

7088

7813

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

0.456

7089

20616

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

0.456

7090

20807

\begin{align*} x^{\prime }-7 x+y&=0 \\ y^{\prime }-2 x-5 y&=0 \\ \end{align*}

0.456

7091

21242

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

0.456

7092

21540

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

0.456

7093

21748

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

0.456

7094

26064

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

0.456

7095

594

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

0.457

7096

617

\begin{align*} x_{1}^{\prime }&=x_{2}+x_{3} \\ x_{2}^{\prime }&=x_{1}+x_{3} \\ x_{3}^{\prime }&=x_{1}+x_{2} \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 10 \\ x_{2} \left (0\right ) &= 12 \\ x_{3} \left (0\right ) &= -1 \\ \end{align*}

0.457

7097

2390

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

0.457

7098

2851

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

0.457

7099

3488

\begin{align*} f^{\prime \prime }+8 f^{\prime }+12 f&=12 \,{\mathrm e}^{-4 t} \\ f \left (0\right ) &= 0 \\ f^{\prime }\left (0\right ) &= -2 \\ \end{align*}

0.457

7100

3818

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

0.457