2.3.155 Problems 15401 to 15500

Table 2.883: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

15401

25001

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

1.526

15402

10148

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

1.527

15403

4741

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

1.528

15404

21626

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

1.528

15405

6861

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

1.529

15406

17718

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

Series expansion around \(x=0\).

1.529

15407

12617

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

1.530

15408

19484

\begin{align*} 2 x^{2} y^{\prime \prime }+10 y^{\prime } x +8 y&=0 \\ \end{align*}

1.530

15409

5888

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

1.531

15410

26519

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

1.531

15411

4752

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

1.532

15412

11397

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

1.532

15413

17727

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

Series expansion around \(x=0\).

1.532

15414

20650

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

1.532

15415

8283

\begin{align*} y^{\prime \prime }+9 y&=5 \\ \end{align*}

1.533

15416

12524

\begin{align*} x \left (x -1\right ) y^{\prime \prime }+\left (\left (\operatorname {a1} +\operatorname {b1} +1\right ) x -\operatorname {d1} \right ) y^{\prime }+\operatorname {a1} \operatorname {b1} \operatorname {d1}&=0 \\ \end{align*}

1.533

15417

21979

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

1.533

15418

25812

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

1.533

15419

663

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

1.534

15420

19173

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

1.534

15421

2310

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

1.535

15422

5047

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

1.535

15423

21333

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

1.535

15424

57

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

1.536

15425

7670

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

1.536

15426

22324

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

1.536

15427

8977

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

1.538

15428

1234

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

1.539

15429

9846

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

1.539

15430

14388

\begin{align*} x^{\prime }&=2 x+3 y \\ y^{\prime }&=-x-14 \\ \end{align*}

1.539

15431

18619

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

1.539

15432

6056

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

1.540

15433

11378

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

1.540

15434

12328

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

1.540

15435

25581

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

1.540

15436

13929

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

1.541

15437

10250

\begin{align*} h^{2}+\frac {2 a h}{\sqrt {1+{h^{\prime }}^{2}}}&=b^{2} \\ \end{align*}

1.542

15438

17793

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

Series expansion around \(x=0\).

1.542

15439

5984

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

1.543

15440

13017

\begin{align*} \left (4 y^{3}-a y-b \right ) y^{\prime \prime }-\left (6 y^{2}-\frac {a}{2}\right ) {y^{\prime }}^{2}&=0 \\ \end{align*}

1.543

15441

14194

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

1.543

15442

17749

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

1.543

15443

21617

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

1.543

15444

6429

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

1.544

15445

26567

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

1.544

15446

32

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

1.545

15447

24795

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

1.545

15448

2483

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

1.546

15449

8883

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

1.546

15450

14370

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

Using Laplace transform method.

1.546

15451

16394

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

1.546

15452

19003

\begin{align*} x_{1}^{\prime }&=-5 x_{1}-2 x_{2}-x_{3}+2 x_{4}+3 x_{5} \\ x_{2}^{\prime }&=-3 x_{2} \\ x_{3}^{\prime }&=x_{1}-x_{3}-x_{5} \\ x_{4}^{\prime }&=2 x_{1}+x_{2}-4 x_{4}-2 x_{5} \\ x_{5}^{\prime }&=-3 x_{1}-2 x_{2}-x_{3}+2 x_{4}+x_{5} \\ \end{align*}

1.546

15453

21450

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

1.546

15454

21497

\begin{align*} y^{\prime \prime }+16 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

1.546

15455

22654

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

1.546

15456

3272

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

1.547

15457

754

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

1.548

15458

2300

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

1.548

15459

15133

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

1.548

15460

7209

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

1.549

15461

16947

\begin{align*} x^{\prime }&=4 x+3 y+5 \operatorname {Heaviside}\left (-2+t \right ) \\ y^{\prime }&=x+6 y+17 \operatorname {Heaviside}\left (-2+t \right ) \\ \end{align*}

With initial conditions

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

1.549

15462

18338

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

1.549

15463

20188

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

1.549

15464

21080

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

1.549

15465

23576

\begin{align*} x^{\prime }&=3 x-2 y+2 t^{2} \\ y^{\prime }&=5 x+y-1 \\ \end{align*}

1.549

15466

710

\begin{align*} 2 y^{\prime } x +y&=10 \sqrt {x} \\ \end{align*}

1.550

15467

7040

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

1.550

15468

7136

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

1.551

15469

12702

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

1.551

15470

12992

\begin{align*} 8 \left (-x^{3}+1\right ) y y^{\prime \prime }-4 \left (-x^{3}+1\right ) {y^{\prime }}^{2}-12 x^{2} y y^{\prime }+3 x y^{2}&=0 \\ \end{align*}

1.551

15471

14245

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

1.551

15472

15166

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

1.551

15473

25312

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

Using Laplace transform method.

1.551

15474

17859

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

1.552

15475

24945

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

1.552

15476

25799

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

1.552

15477

7911

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

1.553

15478

12416

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

1.553

15479

15768

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

1.553

15480

16162

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

1.553

15481

27376

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

1.553

15482

5914

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

1.554

15483

7947

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

1.554

15484

11313

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

1.554

15485

18895

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

Using Laplace transform method.

1.554

15486

25829

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

1.554

15487

27168

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

1.554

15488

27161

\begin{align*} x_{1}^{\prime }&=2 x_{1}+5 x_{2}+6 x_{3} \\ x_{2}^{\prime }&=8 x_{2}+9 x_{3} \\ x_{3}^{\prime }&=x_{2}-2 x_{3} \\ \end{align*}

1.555

15489

2302

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

1.556

15490

7662

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

Series expansion around \(x=0\).

1.556

15491

12540

\begin{align*} 4 x^{2} y^{\prime \prime }+4 y^{\prime } x -\left (4 x^{2}+1\right ) y-4 \sqrt {x^{3}}\, {\mathrm e}^{x}&=0 \\ \end{align*}

1.556

15492

12899

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

1.556

15493

22065

\begin{align*} y^{\prime }-7 y&={\mathrm e}^{x} \\ \end{align*}

1.556

15494

5773

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

1.557

15495

10127

\begin{align*} y^{\prime \prime }-\frac {y^{\prime }}{x}-x^{2} y-x^{3}-\frac {1}{x}&=0 \\ \end{align*}

1.557

15496

18048

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

1.557

15497

22339

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

1.557

15498

7474

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

1.558

15499

15238

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

Using Laplace transform method.

1.558

15500

17847

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

1.558