2.3.85 Problems 8401 to 8500

Table 2.743: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

8401

11384

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

1.080

8402

13104

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

1.080

8403

16689

\begin{align*} y^{\prime \prime }-7 y^{\prime }+10 y&=6 \,{\mathrm e}^{3 x} \\ \end{align*}

1.080

8404

18831

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

1.080

8405

22727

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

1.080

8406

23247

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

1.080

8407

24756

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

1.080

8408

5825

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

1.081

8409

7623

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

Series expansion around \(x=0\).

1.081

8410

8192

\begin{align*} y^{\prime \prime }+4 y^{\prime }+6 y&=10 \\ \end{align*}

1.081

8411

13151

\(\left [\begin {array}{ccc} 5 & 0 & 0 \\ 4 & -4 & -2 \\ -2 & 12 & 6 \end {array}\right ]\)

N/A

N/A

N/A

1.081

8412

16001

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

With initial conditions

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

1.081

8413

18988

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

1.081

8414

20552

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

1.081

8415

2079

\begin{align*} x^{2} \left (2 x +1\right ) y^{\prime \prime }+x \left (9+13 x \right ) y^{\prime }+\left (7+5 x \right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.082

8416

3363

\begin{align*} 2 x^{2} \left (1-3 x \right ) y^{\prime \prime }+5 y^{\prime } x -2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.082

8417

15973

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

1.082

8418

18435

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

With initial conditions

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

1.082

8419

21746

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

1.082

8420

9067

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

1.083

8421

16363

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

1.083

8422

17302

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

1.083

8423

73

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

1.084

8424

6242

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

1.084

8425

8815

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

1.084

8426

14076

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

1.084

8427

21097

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

1.084

8428

21897

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

1.084

8429

17

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

1.085

8430

646

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

With initial conditions

\begin{align*} x_{1} \left (0\right ) &= 0 \\ x_{2} \left (0\right ) &= 0 \\ x_{3} \left (0\right ) &= 17 \\ \end{align*}

1.085

8431

4182

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

Series expansion around \(x=0\).

1.085

8432

9799

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

1.085

8433

10387

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

1.085

8434

16004

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

With initial conditions

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

1.085

8435

16607

\begin{align*} y^{\prime \prime }+4 y^{\prime }-5 y&=30 \,{\mathrm e}^{-4 x} \\ \end{align*}

1.085

8436

19052

\begin{align*} x_{1}^{\prime }&=5 x_{1}-3 x_{2}-2 x_{3} \\ x_{2}^{\prime }&=8 x_{1}-5 x_{2}-4 x_{3} \\ x_{3}^{\prime }&=-4 x_{1}+3 x_{2}+3 x_{3} \\ \end{align*}

1.085

8437

1805

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

1.086

8438

1941

\begin{align*} 2 x^{2} \left (x^{2}+x +1\right ) y^{\prime \prime }+x \left (11 x^{2}+11 x +9\right ) y^{\prime }+\left (7 x^{2}+10 x +6\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.086

8439

13153

\(\left [\begin {array}{ccc} 1 & 0 & -1 \\ -2 & 3 & -1 \\ -6 & 6 & 0 \end {array}\right ]\)

N/A

N/A

N/A

1.086

8440

20809

\begin{align*} 4 x^{\prime }+9 y^{\prime }+11 x+31 y&={\mathrm e}^{t} \\ 3 x^{\prime }+7 y^{\prime }+8 x+24 y&={\mathrm e}^{2 t} \\ \end{align*}

1.086

8441

24474

\begin{align*} y^{\prime \prime }-4 y^{\prime }+7 y&=0 \\ \end{align*}

1.086

8442

14680

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=\frac {{\mathrm e}^{-3 x}}{x^{3}} \\ \end{align*}

1.087

8443

17455

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

1.087

8444

21727

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

1.087

8445

22688

\begin{align*} y^{\prime \prime }-4 y&=8 x^{2} \\ \end{align*}

1.087

8446

22717

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

1.087

8447

6238

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

1.088

8448

7992

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&={\mathrm e}^{2 x} \\ \end{align*}

1.088

8449

13000

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

1.088

8450

15249

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

Using Laplace transform method.

1.088

8451

21575

\begin{align*} y^{\prime \prime }-2 y^{\prime }+5 y&=16 x^{3} {\mathrm e}^{3 x} \\ \end{align*}

1.088

8452

21793

\begin{align*} y^{\prime \prime }+y^{\prime }&=6 y+5 \,{\mathrm e}^{2 x} \\ \end{align*}

1.088

8453

5775

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=50 \cos \left (x \right ) \cosh \left (x \right ) \\ \end{align*}

1.089

8454

8630

\begin{align*} y^{\prime \prime }-4 y^{\prime }+3 y&=6 t -8 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.089

8455

13882

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

1.089

8456

14625

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

1.089

8457

15211

\begin{align*} y^{\prime \prime \prime \prime }+13 y^{\prime \prime }+36 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= -1 \\ y^{\prime \prime }\left (0\right ) &= 5 \\ y^{\prime \prime \prime }\left (0\right ) &= 19 \\ \end{align*}

Using Laplace transform method.

1.089

8458

24724

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

1.089

8459

5784

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

1.090

8460

6391

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

1.090

8461

16003

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

With initial conditions

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

1.090

8462

18264

\begin{align*} y^{\prime \prime }+9 y&=36 \,{\mathrm e}^{3 x} \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 6 \\ \end{align*}

1.090

8463

2086

\begin{align*} 4 x^{2} \left (x +1\right ) y^{\prime \prime }+4 x \left (4 x +1\right ) y^{\prime }-\left (49+27 x \right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.091

8464

15576

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

1.091

8465

18833

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

1.091

8466

1943

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

Series expansion around \(x=0\).

1.092

8467

2830

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

1.092

8468

7634

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

Series expansion around \(x=0\).

1.092

8469

8018

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

1.092

8470

8625

\begin{align*} y^{\prime \prime }+9 y&=10 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.092

8471

9073

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

1.092

8472

17487

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

1.092

8473

20904

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

Series expansion around \(x=0\).

1.092

8474

21095

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

1.092

8475

4382

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

1.093

8476

9343

\begin{align*} y^{\prime \prime }+9 y&=-3 \cos \left (2 x \right ) \\ \end{align*}

1.094

8477

14403

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

1.094

8478

820

\begin{align*} x^{2} y^{\prime \prime }+2 y^{\prime } x -6 y&=0 \\ y \left (2\right ) &= 10 \\ y^{\prime }\left (2\right ) &= 15 \\ \end{align*}

1.095

8479

16795

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

Using Laplace transform method.

1.095

8480

17478

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

1.095

8481

23111

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

1.095

8482

1529

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

1.096

8483

5916

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

1.096

8484

8847

\begin{align*} x_{1}^{\prime }&=3 x_{1}-x_{2} \\ x_{2}^{\prime }&=16 x_{1}-5 x_{2} \\ \end{align*}

With initial conditions

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

1.096

8485

9983

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

With initial conditions

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

1.096

8486

10255

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

1.096

8487

25541

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

1.096

8488

3383

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

Series expansion around \(x=0\).

1.098

8489

8796

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

1.098

8490

17750

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

1.098

8491

18450

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

With initial conditions

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

1.098

8492

18852

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

1.098

8493

3879

\begin{align*} x_{1}^{\prime }&=2 x_{1}-3 x_{2}+34 \sin \left (t \right ) \\ x_{2}^{\prime }&=-4 x_{1}-2 x_{2}+17 \cos \left (t \right ) \\ \end{align*}

1.099

8494

9671

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

1.099

8495

12447

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

1.099

8496

12534

\begin{align*} \left (2 x^{2}+6 x +4\right ) y^{\prime \prime }+\left (10 x^{2}+21 x +8\right ) y^{\prime }+\left (12 x^{2}+17 x +8\right ) y&=0 \\ \end{align*}

1.099

8497

14927

\begin{align*} 4 x^{\prime \prime }-20 x^{\prime }+21 x&=0 \\ x \left (0\right ) &= -4 \\ x^{\prime }\left (0\right ) &= -12 \\ \end{align*}

1.099

8498

15260

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

1.099

8499

16652

\begin{align*} 6 y-5 y^{\prime }+y^{\prime \prime }&=x^{2} {\mathrm e}^{3 x} \\ \end{align*}

1.099

8500

17019

\begin{align*} x^{2} y^{\prime \prime }-y^{\prime } x -16 y&=0 \\ \end{align*}

1.099