2.3.204 Problems 20301 to 20400

Table 2.981: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

20301

17213

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

4.584

20302

12272

\begin{align*} y^{\prime }&=-F \left (x \right ) \left (-7 x y^{2}-x^{3}\right )+\frac {y}{x} \\ \end{align*}

4.585

20303

17908

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

4.585

20304

7341

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

4.586

20305

12188

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

4.586

20306

19740

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

4.588

20307

20291

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

4.588

20308

6530

\begin{align*} \operatorname {f3} \left (x \right ) y^{2}+\operatorname {f2} \left (x \right ) y y^{\prime }+\operatorname {f1} \left (x \right ) {y^{\prime }}^{2}+\operatorname {f0} \left (x \right ) y y^{\prime \prime }&=0 \\ \end{align*}

4.589

20309

5189

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

4.590

20310

5075

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

4.591

20311

17984

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

4.593

20312

22001

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

4.593

20313

17316

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

4.594

20314

11401

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

4.595

20315

8454

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

4.596

20316

22980

\begin{align*} y^{\prime }-6 y&={\mathrm e}^{6 t} \\ y \left (0\right ) &= 0 \\ \end{align*}

4.596

20317

15604

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

4.597

20318

22324

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

4.597

20319

25533

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

4.598

20320

19665

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

4.599

20321

24267

\begin{align*} \left (t^{2}+1\right ) s^{\prime }+2 t \left (s t^{2}-3 \left (t^{2}+1\right )^{2}\right )&=0 \\ s \left (0\right ) &= 2 \\ \end{align*}

4.599

20322

11362

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

4.601

20323

17137

\begin{align*} y^{\prime }&=y f \left (t \right ) \\ y \left (1\right ) &= 1 \\ \end{align*}

4.602

20324

12213

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

4.604

20325

6064

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

4.605

20326

21463

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

4.605

20327

16894

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

Series expansion around \(x=0\).

4.606

20328

21343

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

4.606

20329

11865

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

4.607

20330

126

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

4.608

20331

27271

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

4.608

20332

9012

\begin{align*} y^{\prime }&=2 \sqrt {y} \\ y \left (x_{0} \right ) &= y_{0} \\ \end{align*}

4.609

20333

22563

\begin{align*} i^{\prime }+3 i&=10 \sin \left (t \right ) \\ i \left (0\right ) &= 0 \\ \end{align*}

4.609

20334

2689

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

Using Laplace transform method.

4.611

20335

21349

\begin{align*} x \cos \left (x \right )+\left (1-6 y^{5}\right ) y^{\prime }&=0 \\ y \left (\pi \right ) &= 0 \\ \end{align*}

4.611

20336

15598

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

4.614

20337

1587

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

4.615

20338

4207

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

4.615

20339

4411

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

4.615

20340

9360

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

4.616

20341

14038

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

4.618

20342

21072

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

4.620

20343

22378

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

4.621

20344

2490

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

4.622

20345

4197

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

4.622

20346

11988

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

4.622

20347

22660

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

4.624

20348

26305

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

4.624

20349

24147

\begin{align*} \left (2 a^{2}-r^{2}\right ) r^{\prime }&=r^{3} \sin \left (\theta \right ) \\ r \left (0\right ) &= a \\ \end{align*}

4.625

20350

24223

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

4.625

20351

24962

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

4.625

20352

22299

\begin{align*} s^{\prime \prime }&=-9 s \\ s \left (0\right ) &= 9 \\ s^{\prime }\left (0\right ) &= 18 \\ \end{align*}

4.626

20353

2692

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

Using Laplace transform method.

4.628

20354

11409

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

4.630

20355

4812

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

4.631

20356

4938

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

4.631

20357

13901

\begin{align*} x^{n} y^{\prime \prime }+c \left (a x +b \right )^{n -4} y&=0 \\ \end{align*}

4.633

20358

9118

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

4.635

20359

13910

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

4.635

20360

17477

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

4.636

20361

1674

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

4.638

20362

14512

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

4.639

20363

17907

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

4.640

20364

5329

\begin{align*} x^{3} \left (1+5 x^{3} y^{7}\right ) y^{\prime }+\left (3 x^{5} y^{5}-1\right ) y^{3}&=0 \\ \end{align*}

4.641

20365

5269

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

4.642

20366

170

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

4.644

20367

2496

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

4.644

20368

8878

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

4.644

20369

20975

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

4.644

20370

12071

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

4.645

20371

14584

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

4.645

20372

25489

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

4.645

20373

26605

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

4.645

20374

19978

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

4.647

20375

20586

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

4.647

20376

25302

\begin{align*} y^{\prime \prime }+5 y^{\prime }+6 y&=\left \{\begin {array}{cc} 0 & 0\le t <1 \\ 6 & 1\le t <3 \\ 0 & 3\le t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

4.647

20377

9199

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

4.648

20378

14252

\begin{align*} \theta ^{\prime }&=-a \theta +{\mathrm e}^{b t} \\ \end{align*}

4.648

20379

25668

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

4.648

20380

13243

\begin{align*} x y^{\prime }&=a \,x^{n} y^{2}+m y-a \,b^{2} x^{n +2 m} \\ \end{align*}

4.649

20381

19673

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

4.649

20382

5549

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

4.651

20383

15113

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

4.651

20384

9807

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

4.652

20385

17043

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

4.652

20386

26280

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

4.652

20387

7126

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

4.654

20388

27249

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

4.654

20389

10452

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

4.655

20390

23190

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

4.655

20391

11436

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

4.656

20392

12160

\begin{align*} y^{\prime }&=-\frac {2 a}{-y-2 a -2 y^{4} a +16 a^{2} x y^{2}-32 a^{3} x^{2}-2 y^{6} a +24 y^{4} a^{2} x -96 y^{2} a^{3} x^{2}+128 a^{4} x^{3}} \\ \end{align*}

4.656

20393

4969

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

4.657

20394

24990

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

4.658

20395

14055

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

4.659

20396

8583

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

Series expansion around \(x=0\).

4.661

20397

1721

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

4.662

20398

58

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

4.664

20399

6535

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

4.664

20400

21862

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

4.664