2.3.165 Problems 16401 to 16500

Table 2.903: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

16401

21670

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

Series expansion around \(x=0\).

2.325

16402

26238

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

2.325

16403

4901

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

2.326

16404

6273

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

2.326

16405

7526

\begin{align*} y^{\prime }-4 y&=32 x^{2} \\ \end{align*}

2.326

16406

13255

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

2.326

16407

21763

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

2.326

16408

26451

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

2.326

16409

15005

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

2.327

16410

21374

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

2.327

16411

23266

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

2.327

16412

15488

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

2.328

16413

19758

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

2.328

16414

21717

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

Using Laplace transform method.

2.329

16415

22312

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

2.329

16416

21319

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

2.330

16417

9389

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

Series expansion around \(x=0\).

2.331

16418

17804

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

2.331

16419

27283

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

2.331

16420

5609

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

2.332

16421

12669

\begin{align*} y^{\prime \prime }&=-\frac {27 x y}{16 \left (x^{3}-1\right )^{2}} \\ \end{align*}

2.332

16422

3707

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

2.333

16423

8453

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

2.333

16424

24868

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

2.333

16425

13107

\begin{align*} x^{\prime }&=c y-b z \\ y^{\prime }&=a z-c x \\ z^{\prime }&=b x-a y \\ \end{align*}

2.334

16426

21015

\begin{align*} x^{\prime }+a x&=b t \\ \end{align*}

2.334

16427

762

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

2.335

16428

19151

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

2.335

16429

27010

\begin{align*} x^{2} y^{\prime \prime }-9 x y^{\prime }+24 y&=0 \\ y \left (1\right ) &= 1 \\ y^{\prime }\left (1\right ) &= 10 \\ \end{align*}

2.335

16430

7742

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

2.336

16431

15929

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

2.336

16432

18255

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

2.336

16433

23267

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

2.336

16434

15227

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

Using Laplace transform method.

2.337

16435

26096

\begin{align*} y^{\prime \prime }+18 \sin \left (y\right ) \cos \left (y\right )^{3}&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

2.337

16436

23233

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

2.338

16437

6867

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

2.339

16438

14838

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

2.339

16439

16135

\begin{align*} y^{\prime \prime }+6 y^{\prime }+13 y&=13 \operatorname {Heaviside}\left (-4+t \right ) \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

2.339

16440

17192

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

2.339

16441

9887

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

2.340

16442

6076

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

2.342

16443

6386

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

2.342

16444

14210

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

2.342

16445

20565

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

2.342

16446

8896

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

2.343

16447

3027

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

2.345

16448

16271

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

2.345

16449

16439

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

2.346

16450

25043

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

2.346

16451

9636

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

2.347

16452

19237

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

2.347

16453

21625

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

2.347

16454

22094

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

2.348

16455

3454

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

2.349

16456

10438

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

2.349

16457

11414

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

2.349

16458

17672

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

2.349

16459

3445

\begin{align*} y^{\prime }&=\tan \left (t \right ) y+\sec \left (t \right )^{3} \\ \end{align*}

2.350

16460

10091

\begin{align*} y^{\prime \prime }-a x y^{\prime }-b x y-x^{3} c&=0 \\ \end{align*}

2.350

16461

20423

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

2.350

16462

3442

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

2.351

16463

7514

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

2.351

16464

21509

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

2.351

16465

76

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

2.352

16466

8422

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

2.352

16467

17142

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

2.352

16468

20203

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

2.352

16469

23347

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

2.352

16470

22622

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

2.353

16471

1171

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

2.355

16472

7258

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

2.356

16473

22495

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

2.356

16474

23906

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

2.357

16475

25803

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

2.357

16476

4741

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

2.358

16477

24256

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

2.358

16478

26517

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

2.358

16479

11459

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

2.359

16480

16999

\begin{align*} t^{2} y^{\prime \prime }-12 t y^{\prime }+42 y&=0 \\ y \left (1\right ) &= 0 \\ y^{\prime }\left (1\right ) &= -1 \\ \end{align*}

2.359

16481

6784

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

2.360

16482

17007

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

2.360

16483

26140

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

2.360

16484

6596

\begin{align*} {y^{\prime \prime }}^{3}&=12 y^{\prime } \left (-2 y^{\prime }+x y^{\prime \prime }\right ) \\ \end{align*}

2.361

16485

11472

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

2.361

16486

20758

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

2.361

16487

4908

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

2.362

16488

7920

\begin{align*} i^{\prime }-6 i&=10 \sin \left (2 t \right ) \\ \end{align*}

2.362

16489

10324

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

2.362

16490

26181

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

2.362

16491

6130

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

2.363

16492

8448

\begin{align*} L i^{\prime }+R i&=E \\ i \left (0\right ) &= i_{0} \\ \end{align*}

2.363

16493

9776

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

2.363

16494

17854

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

2.363

16495

25187

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

2.363

16496

25423

\begin{align*} y^{\prime }&=-y+\operatorname {Heaviside}\left (-3+t \right )+\delta \left (t -1\right ) \\ \end{align*}

2.363

16497

41

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

2.364

16498

7402

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

2.364

16499

11805

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

2.364

16500

178

\begin{align*} x^{\prime }&=7 x \left (x-13\right ) \\ x \left (0\right ) &= 17 \\ \end{align*}

2.365