2.2.87 Problems 8601 to 8700

Table 2.175: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

8601

\[ {}t^{2} y^{\prime \prime }+t \left (1+t \right ) y^{\prime }-y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.257

8602

\[ {}t y^{\prime \prime }-\left (4+t \right ) y^{\prime }+2 y = 0 \]

[_Laguerre]

0.295

8603

\[ {}t^{2} y^{\prime \prime }+\left (t^{2}-3 t \right ) y^{\prime }+3 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.291

8604

\[ {}t y^{\prime \prime }+t y^{\prime }+2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.267

8605

\[ {}t y^{\prime \prime }+\left (-t^{2}+1\right ) y^{\prime }+4 t y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.752

8606

\[ {}t^{2} y^{\prime \prime }-t \left (1+t \right ) y^{\prime }+y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.266

8607

\[ {}y^{\prime \prime }+4 y^{\prime } x +\left (4 x^{2}+6\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.198

8608

\[ {}\left (-z^{2}+1\right ) y^{\prime \prime }-3 z y^{\prime }+\lambda y = 0 \]

[_Gegenbauer]

0.550

8609

\[ {}4 z y^{\prime \prime }+2 \left (1-z \right ) y^{\prime }-y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.300

8610

\[ {}f^{\prime \prime }+2 \left (z -1\right ) f^{\prime }+4 f = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.291

8611

\[ {}z y^{\prime \prime }-2 y^{\prime }+y z = 0 \]

[_Lienard]

0.306

8612

\[ {}z y^{\prime \prime }+\left (2 z -3\right ) y^{\prime }+\frac {4 y}{z} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.333

8613

\[ {}y^{\prime \prime }+2 y^{\prime } x +4 y = 0 \]

[_erf]

0.227

8614

\[ {}y^{\prime \prime }+y^{\prime } x +3 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.312

8615

\[ {}y^{\prime \prime }-x^{2} y^{\prime }-3 y x = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.286

8616

\[ {}\left (-4 x^{2}+1\right ) y^{\prime \prime }-20 y^{\prime } x -16 y = 0 \]

[_Gegenbauer]

0.304

8617

\[ {}\left (x^{2}-1\right ) y^{\prime \prime }-6 y^{\prime } x +12 y = 0 \]

[_Gegenbauer]

0.240

8618

\[ {}y^{\prime \prime }+y^{\prime } x +\left (x +2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.316

8619

\[ {}\left (2 x^{2}+1\right ) y^{\prime \prime }+7 y^{\prime } x +2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.376

8620

\[ {}4 y^{\prime \prime }+y^{\prime } x +4 y = 0 \]

[_Lienard]

0.298

8621

\[ {}y^{\prime \prime }+y^{\prime } x -4 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.279

8622

\[ {}4 x y^{\prime \prime }-y^{\prime } x +2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.261

8623

\[ {}6 x^{2} y^{\prime \prime }+x \left (1+18 x \right ) y^{\prime }+\left (1+12 x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.329

8624

\[ {}3 x^{2} y^{\prime \prime }-x \left (x +8\right ) y^{\prime }+6 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

3.776

8625

\[ {}2 x^{2} y^{\prime \prime }-x \left (2 x +1\right ) y^{\prime }+2 \left (4 x -1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.714

8626

\[ {}4 x^{2} y^{\prime \prime }-4 x^{2} y^{\prime }+\left (2 x +1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.262

8627

\[ {}x^{2} y^{\prime \prime }+x \left (3-2 x \right ) y^{\prime }+\left (1-2 x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.301

8628

\[ {}x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+\left (4-x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.329

8629

\[ {}x^{2} y^{\prime \prime }+x \left (3-x \right ) y^{\prime }+y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.324

8630

\[ {}x^{2} y^{\prime \prime }-\left (2 \sqrt {5}-1\right ) x y^{\prime }+\left (\frac {19}{4}-3 x^{2}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.214

8631

\[ {}x^{2} y^{\prime \prime }+x \left (x -3\right ) y^{\prime }+\left (4-x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.273

8632

\[ {}x^{2} y^{\prime \prime }+x^{2} y^{\prime }-\left (x +2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.240

8633

\[ {}x^{2} y^{\prime \prime }+2 x^{2} y^{\prime }+\left (x -\frac {3}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.252

8634

\[ {}x^{2} \left (x +1\right ) y^{\prime \prime }+x^{2} y^{\prime }-2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.236

8635

\[ {}x^{2} y^{\prime \prime }+x \left (x^{2}+6\right ) y^{\prime }+6 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.428

8636

\[ {}x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.276

8637

\[ {}x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+4 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.313

8638

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }-2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.268

8639

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }-\left (2+3 x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.303

8640

\[ {}x^{2} y^{\prime \prime }+x \left (5-x \right ) y^{\prime }+4 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.383

8641

\[ {}4 x^{2} y^{\prime \prime }+4 x \left (1-x \right ) y^{\prime }+\left (2 x -9\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.267

8642

\[ {}x^{2} y^{\prime \prime }+2 x \left (x +2\right ) y^{\prime }+2 \left (x +1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.284

8643

\[ {}x^{2} y^{\prime \prime }-x \left (1-x \right ) y^{\prime }+\left (1-x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.286

8644

\[ {}4 x^{2} y^{\prime \prime }+4 x \left (2 x +1\right ) y^{\prime }+\left (4 x -1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.148

8645

\[ {}x^{2} y^{\prime \prime }+x \left (4+x \right ) y^{\prime }+\left (x +2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.293

8646

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}-\frac {9}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.313

8647

\[ {}x y^{\prime \prime }+2 y^{\prime }+y x = 0 \]

[_Lienard]

0.162

8648

\[ {}2 x y^{\prime \prime }+5 \left (1-2 x \right ) y^{\prime }-5 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.456

8649

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}-\frac {1}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.180

8650

\[ {}x y^{\prime \prime }+\left (x +n \right ) y^{\prime }+\left (n +1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.467

8651

\[ {}x^{4} y^{\prime \prime }+y^{\prime } x +y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.369

8652

\[ {}x^{2} y^{\prime \prime }+\left (2 x^{2}+x \right ) y^{\prime }-4 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.296

8653

\[ {}\left (4 x^{3}-14 x^{2}-2 x \right ) y^{\prime \prime }-\left (6 x^{2}-7 x +1\right ) y^{\prime }+\left (6 x -1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.514

8654

\[ {}x^{2} y^{\prime \prime }+x^{2} y^{\prime }+\left (x -2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.256

8655

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }+\left (x -2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.254

8656

\[ {}x^{2} \left (1-4 x \right ) y^{\prime \prime }-\frac {y^{\prime } x}{2}-\frac {3 y x}{4} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.342

8657

\[ {}x^{2} y^{\prime \prime }+\left (x^{2}+x \right ) y^{\prime }+\left (x -9\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.338

8658

\[ {}x^{2} y^{\prime \prime }+x \left (x +1\right ) y^{\prime }+\left (3 x -1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.330

8659

\[ {}x^{2} y^{\prime \prime }-\left (x^{2}+4 x \right ) y^{\prime }+4 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.284

8660

\[ {}2 x^{2} y^{\prime \prime }-\left (2+3 x \right ) y^{\prime }+\frac {\left (2 x -1\right ) y}{x} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.509

8661

\[ {}x \left (1-x \right ) y^{\prime \prime }+\left (\frac {3}{2}-2 x \right ) y^{\prime }-\frac {y}{4} = 0 \]

[_Jacobi]

0.291

8662

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+y^{\prime } x -y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.270

8663

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+\left (1-11 x \right ) y^{\prime }-10 y = 0 \]

[_Jacobi]

0.260

8664

\[ {}x \left (1-x \right ) y^{\prime \prime }+\frac {\left (1-2 x \right ) y^{\prime }}{3}+\frac {20 y}{9} = 0 \]

[_Jacobi]

0.277

8665

\[ {}4 y^{\prime \prime }+\frac {3 \left (-x^{2}+2\right ) y}{\left (-x^{2}+1\right )^{2}} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.234

8666

\[ {}u^{\prime \prime }-\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.315

8667

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.164

8668

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}+a^{2} u = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.174

8669

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}-a^{2} u = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.313

8670

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}+a^{2} u = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.370

8671

\[ {}y^{\prime \prime }-a^{2} y = \frac {6 y}{x^{2}} \]

[[_2nd_order, _with_linear_symmetries]]

0.352

8672

\[ {}y^{\prime \prime }+n^{2} y = \frac {6 y}{x^{2}} \]

[[_2nd_order, _with_linear_symmetries]]

0.418

8673

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x -\left (x^{2}+\frac {1}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.144

8674

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +\frac {\left (-9 a^{2}+4 x^{2}\right ) y}{4 a^{2}} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.365

8675

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}-\frac {25}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.339

8676

\[ {}y^{\prime \prime }+q y^{\prime } = \frac {2 y}{x^{2}} \]

[[_2nd_order, _with_linear_symmetries]]

0.319

8677

\[ {}x y^{\prime \prime }+3 y^{\prime }+4 x^{3} y = 0 \]

[[_Emden, _Fowler]]

0.322

8678

\[ {}\left (x^{2}+2 x \right ) y^{\prime \prime }-2 \left (x +1\right ) y^{\prime }+2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.257

8679

\[ {}\left (x^{2}+2 x \right ) y^{\prime \prime }-2 \left (x +1\right ) y^{\prime }+2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.260

8680

\[ {}\left (x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.325

8681

\[ {}\left (x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.316

8682

\[ {}y^{\prime \prime }-4 y^{\prime } x +\left (4 x^{2}-2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.107

8683

\[ {}y^{\prime \prime }-4 y^{\prime } x +\left (4 x^{2}-2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.106

8684

\[ {}\left (2 x -3\right ) y^{\prime \prime }-y^{\prime } x +y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.396

8685

\[ {}y^{\prime \prime }-y^{\prime } x -3 y = 0 \]

[_Hermite]

0.263

8686

\[ {}\left (x^{2}+1\right ) y^{\prime \prime }-y^{\prime } x +y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.314

8687

\[ {}y^{\prime \prime }-y^{\prime } x +2 y = 0 \]

[_Hermite]

0.293

8688

\[ {}\left (-x^{2}+1\right ) y^{\prime \prime }-y^{\prime }+y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.734

8689

\[ {}x \left (x +1\right )^{2} y^{\prime \prime }+\left (-x^{2}+1\right ) y^{\prime }+\left (x -1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.227

8690

\[ {}2 x y^{\prime \prime }-y^{\prime }+2 y = 0 \]

[[_Emden, _Fowler]]

0.266

8691

\[ {}x y^{\prime \prime }+y^{\prime } x -2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.283

8692

\[ {}x \left (x -1\right )^{2} y^{\prime \prime }-2 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.212

8693

\[ {}y^{\prime \prime }-2 y^{\prime } x +x^{2} y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.195

8694

\[ {}x \left (-x^{2}+2\right ) y^{\prime \prime }-\left (x^{2}+4 x +2\right ) \left (\left (1-x \right ) y^{\prime }+y\right ) = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.579

8695

\[ {}x^{2} \left (x +1\right ) y^{\prime \prime }-\left (2 x +1\right ) \left (-y+y^{\prime } x \right ) = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.329

8696

\[ {}2 \left (2-x \right ) x^{2} y^{\prime \prime }-x \left (4-x \right ) y^{\prime }+\left (3-x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.209

8697

\[ {}x^{2} \left (1-x \right ) y^{\prime \prime }+\left (5 x -4\right ) x y^{\prime }+\left (6-9 x \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.231

8698

\[ {}x y^{\prime \prime }+\left (4 x^{2}+1\right ) y^{\prime }+4 x \left (x^{2}+1\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.211

8699

\[ {}y^{\prime \prime }-2 y^{\prime } x +8 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.260

8700

\[ {}\left (-x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +12 y = 0 \]

[_Gegenbauer]

0.361