2.3.138 Problems 13701 to 13800

Table 2.849: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

13701

14333

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

1.334

13702

1549

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

1.335

13703

4461

\begin{align*} y^{\prime \prime \prime }-2 y^{\prime \prime }+4 y^{\prime }-8 y&={\mathrm e}^{2 x} \sin \left (2 x \right )+2 x^{2} \\ \end{align*}

1.335

13704

7150

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

1.335

13705

17712

\begin{align*} 7 x y^{\prime \prime }+10 y^{\prime }+\left (-x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.335

13706

18867

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

1.335

13707

23840

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

1.335

13708

3311

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

1.336

13709

9393

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

Series expansion around \(x=0\).

1.336

13710

9439

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

Series expansion around \(x=\infty \).

1.336

13711

10308

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

1.336

13712

22925

\begin{align*} x^{\prime }+3 x-y^{\prime }-y&=0 \\ 2 x^{\prime }-9 x+y^{\prime }+4 y&=15 \,{\mathrm e}^{-3 t} \\ \end{align*}

1.336

13713

23847

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

1.336

13714

1596

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

1.337

13715

15089

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

1.337

13716

20023

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

1.337

13717

13488

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

1.338

13718

15785

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

1.338

13719

4228

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

1.339

13720

8805

\begin{align*} y^{\prime \prime \prime \prime }+2 y^{\prime \prime }+y&=3 \sin \left (t \right )-5 \cos \left (t \right ) \\ \end{align*}

1.339

13721

9000

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

Series expansion around \(x=0\).

1.339

13722

11858

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

1.339

13723

21611

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

1.339

13724

21675

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

Series expansion around \(x=0\).

1.339

13725

24039

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

1.339

13726

24284

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

1.339

13727

27073

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

Series expansion around \(x=0\).

1.339

13728

17

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

1.340

13729

6735

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

1.340

13730

9707

\begin{align*} x^{\prime }&=x-12 y-14 z \\ y^{\prime }&=x+2 y-3 z \\ z^{\prime }&=x+y-2 z \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 4 \\ y \left (0\right ) &= 6 \\ z \left (0\right ) &= -7 \\ \end{align*}

1.340

13731

27733

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

1.340

13732

21762

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

1.341

13733

2

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

1.342

13734

8983

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

Series expansion around \(x=0\).

1.342

13735

12490

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

1.342

13736

13695

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

1.342

13737

14686

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

1.342

13738

16512

\begin{align*} y^{\prime \prime }+25 y&=0 \\ \end{align*}

1.342

13739

21053

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

1.342

13740

21515

\begin{align*} y^{\prime \prime }&=9 x^{2}+2 x -1 \\ \end{align*}

1.342

13741

22133

\begin{align*} y^{\prime \prime }&=9 x^{2}+2 x -1 \\ \end{align*}

1.342

13742

23369

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

1.342

13743

24000

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

1.342

13744

27310

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

1.342

13745

18401

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

1.343

13746

25620

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

1.343

13747

9406

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

Series expansion around \(x=0\).

1.344

13748

15102

\begin{align*} x^{\prime \prime }+10 x^{\prime }+25 x&=2^{t}+t \,{\mathrm e}^{-5 t} \\ \end{align*}

1.344

13749

16860

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

Series expansion around \(x=3\).

1.344

13750

17488

\begin{align*} y^{\prime \prime }+16 y&=\cot \left (4 t \right ) \\ \end{align*}

1.344

13751

22271

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

With initial conditions

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

1.344

13752

25478

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

1.344

13753

25618

\begin{align*} y^{\prime \prime }+4 y^{\prime }&={\mathrm e}^{2 t} \\ \end{align*}

1.344

13754

666

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

1.345

13755

25027

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

1.345

13756

14048

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

1.346

13757

16734

\begin{align*} 2 y^{\prime \prime }-7 y^{\prime }+3&=0 \\ \end{align*}

1.346

13758

19000

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

1.346

13759

11765

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

1.347

13760

18392

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

1.347

13761

2193

\begin{align*} y^{\prime \prime \prime \prime }-8 y^{\prime \prime \prime }+26 y^{\prime \prime }-40 y^{\prime }+25 y&={\mathrm e}^{2 x} \left (3 \cos \left (x \right )-\left (1+3 x \right ) \sin \left (x \right )\right ) \\ \end{align*}

1.348

13762

14393

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

1.348

13763

20068

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

1.348

13764

20844

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

1.348

13765

21769

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

1.348

13766

992

\begin{align*} x_{1}^{\prime }&=-2 x_{1}+9 x_{4} \\ x_{2}^{\prime }&=4 x_{1}+2 x_{2}-10 x_{4} \\ x_{3}^{\prime }&=-x_{3}+8 x_{4} \\ x_{4}^{\prime }&=x_{4} \\ \end{align*}

1.349

13767

3970

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

Using Laplace transform method.

1.349

13768

5777

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

1.349

13769

14809

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

1.350

13770

20182

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

1.350

13771

22801

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

1.350

13772

27487

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

1.350

13773

1793

\begin{align*} y^{\prime }+y^{2}+5 y-6&=0 \\ \end{align*}

1.351

13774

10159

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

1.351

13775

22309

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

1.351

13776

3913

\begin{align*} x_{1}^{\prime }&=7 x_{1}-x_{4} \\ x_{2}^{\prime }&=6 x_{2} \\ x_{3}^{\prime }&=-x_{3} \\ x_{4}^{\prime }&=2 x_{1}+5 x_{4} \\ \end{align*}

1.352

13777

3962

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

Using Laplace transform method.

1.352

13778

4009

\begin{align*} x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-7 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.352

13779

13672

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

1.352

13780

16491

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

1.352

13781

17429

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

1.352

13782

18149

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

1.352

13783

991

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

1.353

13784

2411

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

1.353

13785

38

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

1.354

13786

6356

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

1.354

13787

6584

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

1.354

13788

14756

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

Series expansion around \(x=0\).

1.354

13789

1916

\begin{align*} \left (\beta \,x^{2}+\alpha x +1\right ) y^{\prime \prime }+\left (\delta x +\gamma \right ) y^{\prime }+\epsilon y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.355

13790

3219

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

1.355

13791

19487

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

1.355

13792

21759

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

1.355

13793

22082

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

1.355

13794

13791

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

1.356

13795

17070

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

1.356

13796

19207

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

1.356

13797

23755

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

1.356

13798

25576

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

1.356

13799

26477

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

1.356

13800

9255

\begin{align*} y^{\prime \prime }+y^{\prime }&=10 x^{4}+2 \\ \end{align*}

1.357