2.2.25 Problems 2401 to 2500

Table 2.67: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

2401

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.561

2402

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.586

2403

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.675

2404

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.535

2405

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.731

2406

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=t^{{5}/{2}} {\mathrm e}^{-2 t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.914

2407

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.023

2408

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.913

2409

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.431

2410

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

[[_2nd_order, _with_linear_symmetries]]

1.507

2411

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.353

2412

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.405

2413

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

0.351

2414

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.473

2415

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

0.351

2416

\begin{align*} t \left (2-t \right ) y^{\prime \prime }-6 \left (t -1\right ) y^{\prime }-4 y&=0 \\ y \left (1\right ) &= 1 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

Series expansion around \(t=1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.572

2417

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

0.368

2418

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

0.338

2419

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

Series expansion around \(t=-1\).

[[_2nd_order, _with_linear_symmetries]]

0.525

2420

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.546

2421

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

Series expansion around \(t=0\).

[_Gegenbauer]

0.652

2422

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

Series expansion around \(t=0\).

[_Gegenbauer, [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

0.585

2423

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.447

2424

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.398

2425

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.554

2426

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.470

2427

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.680

2428

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.570

2429

\begin{align*} y^{\prime \prime }+y^{\prime }+{\mathrm e}^{-t} y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.774

2430

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

[[_Emden, _Fowler]]

1.645

2431

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

[[_Emden, _Fowler]]

1.255

2432

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.260

2433

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.694

2434

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.626

2435

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

[[_Emden, _Fowler]]

1.731

2436

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

[[_2nd_order, _with_linear_symmetries]]

1.766

2437

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

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.632

2438

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

[[_Emden, _Fowler]]

2.442

2439

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

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.701

2440

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

3.770

2441

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

Series expansion around \(t=2\).

[[_2nd_order, _with_linear_symmetries]]

0.397

2442

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.905

2443

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.566

2444

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

Series expansion around \(t=-1\).

[[_2nd_order, _with_linear_symmetries]]

0.695

2445

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.226

2446

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.963

2447

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

Series expansion around \(t=0\).

[_Laguerre]

1.020

2448

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.062

2449

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.946

2450

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

1.009

2451

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.928

2452

\begin{align*} t^{3} y^{\prime \prime }-t y^{\prime }-\left (t^{2}+\frac {5}{4}\right ) y&=0 \\ \end{align*}

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.184

2453

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.033

2454

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

Series expansion around \(t=0\).

[_Lienard]

1.006

2455

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

Series expansion around \(t=0\).

[_Laguerre, [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.007

2456

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.895

2457

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

Series expansion around \(t=0\).

[_Laguerre]

1.076

2458

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

3.208

2459

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

3.141

2460

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

2.605

2461

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.766

2462

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

Series expansion around \(t=0\).

[_Lienard]

0.649

2463

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

Series expansion around \(t=0\).

[_Bessel]

1.089

2464

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

Series expansion around \(t=0\).

[_Laguerre]

1.153

2465

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.482

2466

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.768

2467

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

0.846

2468

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.808

2469

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

Series expansion around \(t=0\).

[_Bessel]

3.188

2470

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

2.632

2471

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

[_separable]

3.652

2472

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

[_separable]

4.914

2473

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

[_linear]

1.932

2474

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

[[_linear, ‘class A‘]]

1.978

2475

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

[_linear]

1.917

2476

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

[_separable]

3.316

2477

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

[_linear]

2.856

2478

\begin{align*} \sqrt {t^{2}+1}\, y+y^{\prime }&=0 \\ y \left (0\right ) &= \sqrt {5} \\ \end{align*}

[_separable]

6.567

2479

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

[_separable]

10.796

2480

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

[_separable]

5.847

2481

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

[_separable]

3.128

2482

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

[_linear]

2.250

2483

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

[_linear]

2.528

2484

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

[_linear]

1.966

2485

\begin{align*} y t +\left (t^{2}+1\right ) y^{\prime }&=\left (t^{2}+1\right )^{{5}/{2}} \\ \end{align*}

[_linear]

3.907

2486

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

[_separable]

5.133

2487

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

[[_linear, ‘class A‘]]

1.553

2488

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

[_separable]

4.345

2489

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

[_separable]

3.459

2490

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

[_separable]

4.622

2491

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

[_separable]

2.835

2492

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

[_separable]

3.932

2493

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

[_separable]

4.688

2494

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

[_separable]

3.178

2495

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

[_separable]

6.322

2496

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

[_separable]

4.644

2497

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

[_separable]

3.395

2498

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

[_quadrature]

12.073

2499

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

[_separable]

10.371

2500

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

[[_homogeneous, ‘class A‘], _rational, _Bernoulli]

6.289