2.3.157 Problems 15601 to 15700

Table 2.863: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

15601

21979

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

2.159

15602

5356

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

2.160

15603

748

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

2.161

15604

6287

\begin{align*} y+x^{3} \left (3 x^{2}+a \right ) y^{\prime }+x^{6} y^{\prime \prime }&=0 \\ \end{align*}

2.161

15605

13853

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

2.161

15606

17802

\begin{align*} x^{\prime \prime }+16 x&=0 \\ x \left (0\right ) &= -2 \\ x^{\prime }\left (0\right ) &= 1 \\ \end{align*}

2.163

15607

3978

\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.

2.164

15608

14055

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

2.164

15609

17389

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

2.164

15610

17663

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

2.164

15611

25459

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

2.164

15612

20569

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

2.165

15613

22721

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

2.165

15614

23338

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

2.165

15615

15240

\begin{align*} y^{\prime \prime }+4 y&=\left \{\begin {array}{cc} 8 t & 0\le t <\frac {\pi }{2} \\ 8 \pi & \frac {\pi }{2}\le t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

2.166

15616

19152

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

2.166

15617

21173

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

2.167

15618

21619

\begin{align*} m y^{\prime \prime }+a y^{\prime }+k y&=0 \\ \end{align*}

2.168

15619

22024

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

2.168

15620

22106

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

2.168

15621

23550

\begin{align*} -3 y+y^{\prime } x +2 x^{2} y^{\prime \prime }&=\frac {1}{x^{3}} \\ y \left (\frac {1}{4}\right ) &= 0 \\ y^{\prime }\left (\frac {1}{4}\right ) &= {\frac {14}{9}} \\ \end{align*}

2.168

15622

12315

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

2.170

15623

21662

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

2.170

15624

26352

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

2.170

15625

13699

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

2.171

15626

15066

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

2.171

15627

17036

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

2.171

15628

5619

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

2.172

15629

17141

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

2.172

15630

7953

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

2.173

15631

8020

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

2.173

15632

8646

\begin{align*} y^{\prime \prime }+4 y&=\left \{\begin {array}{cc} 8 t^{2} & 0<t <5 \\ 0 & 5<t \end {array}\right . \\ y \left (1\right ) &= 1+\cos \left (2\right ) \\ y^{\prime }\left (1\right ) &= 4-2 \sin \left (2\right ) \\ \end{align*}
Using Laplace transform method.

2.174

15633

12650

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

2.174

15634

14238

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

2.174

15635

22467

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

2.174

15636

22468

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

2.174

15637

25416

\begin{align*} y^{\prime }+2 y&=\operatorname {Heaviside}\left (t -4\right )-\operatorname {Heaviside}\left (t -6\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

2.174

15638

13786

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

2.175

15639

20583

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

2.175

15640

7685

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

2.176

15641

11820

\begin{align*} 4 {y^{\prime }}^{3} x -6 y {y^{\prime }}^{2}-x +3 y&=0 \\ \end{align*}

2.176

15642

9735

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

2.177

15643

15112

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

2.177

15644

16604

\begin{align*} x^{2} y^{\prime \prime }-7 y^{\prime } x +15 y&=4 x^{2}+2 x +3 \\ \end{align*}

2.177

15645

20655

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

2.178

15646

7131

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

2.179

15647

9418

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

2.179

15648

5837

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

2.180

15649

3329

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

2.181

15650

16365

\begin{align*} y^{\prime }&=4 y-\frac {16 \,{\mathrm e}^{4 x}}{y^{2}} \\ \end{align*}

2.181

15651

17054

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

2.181

15652

19769

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

2.181

15653

24041

\begin{align*} x^{2} y^{\prime \prime }-3 y^{\prime } x +4 y&=6 \\ \end{align*}

2.181

15654

1225

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

2.182

15655

20372

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

2.182

15656

10107

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

2.183

15657

17804

\begin{align*} x^{\prime \prime }+9 x&=0 \\ x \left (0\right ) &= {\frac {1}{3}} \\ x^{\prime }\left (0\right ) &= -1 \\ \end{align*}

2.183

15658

13704

\begin{align*} y^{\prime \prime }+\left (b \,x^{3} a +b \,x^{2}+2 a \right ) y^{\prime }+a^{2} \left (b \,x^{3}+1\right ) y&=0 \\ \end{align*}

2.185

15659

19362

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

2.185

15660

1224

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

2.187

15661

2667

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

2.187

15662

15391

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

2.187

15663

6336

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

2.188

15664

8334

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

2.188

15665

17164

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

2.188

15666

22095

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

2.188

15667

25812

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

2.188

15668

26336

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

2.188

15669

8641

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=\left \{\begin {array}{cc} 4 t & 0<t <1 \\ 8 & 1<t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

2.189

15670

6030

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

2.190

15671

7960

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

2.190

15672

23375

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

2.190

15673

5817

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

2.191

15674

18740

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

2.191

15675

9647

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

2.192

15676

18295

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

2.192

15677

1122

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

2.193

15678

19055

\begin{align*} x_{1}^{\prime }&=-8 x_{1}-16 x_{2}-16 x_{3}-17 x_{4} \\ x_{2}^{\prime }&=-2 x_{1}-10 x_{2}-8 x_{3}-7 x_{4} \\ x_{3}^{\prime }&=-2 x_{1}-2 x_{3}-3 x_{4} \\ x_{4}^{\prime }&=6 x_{1}+14 x_{2}+14 x_{3}+14 x_{4} \\ \end{align*}

2.193

15679

2302

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

2.194

15680

11692

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

2.194

15681

5651

\begin{align*} 8 {y^{\prime }}^{3} x -12 y {y^{\prime }}^{2}+9 y&=0 \\ \end{align*}

2.195

15682

9053

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

2.195

15683

18805

\begin{align*} x^{2} y^{\prime \prime }-5 y^{\prime } x +9 y&=0 \\ \end{align*}

2.196

15684

8766

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

2.197

15685

10179

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

2.197

15686

16439

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

2.197

15687

25449

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

2.197

15688

15560

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

2.198

15689

17854

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

2.198

15690

6312

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

2.199

15691

700

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

2.200

15692

15538

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

2.200

15693

23059

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

2.200

15694

5296

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

2.201

15695

12615

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

2.201

15696

17864

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

2.201

15697

20629

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

2.201

15698

22523

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

2.201

15699

22599

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

2.201

15700

31

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

2.202