2.2.147 Problems 14601 to 14700

Table 2.295: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

14601

\[ {}y^{\prime } = \frac {y+1}{1+t} \]

[_separable]

1.839

14602

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

[_separable]

2.008

14603

\[ {}y^{\prime } = t^{4} y \]

[_separable]

1.625

14604

\[ {}y^{\prime } = 2 y+1 \]

[_quadrature]

1.214

14605

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

[_quadrature]

1.162

14606

\[ {}y^{\prime } = {\mathrm e}^{-y} \]

[_quadrature]

1.283

14607

\[ {}x^{\prime } = 1+x^{2} \]

[_quadrature]

1.198

14608

\[ {}y^{\prime } = 2 t y^{2}+3 y^{2} \]

[_separable]

1.731

14609

\[ {}y^{\prime } = \frac {t}{y} \]

[_separable]

3.463

14610

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

[_separable]

1.428

14611

\[ {}y^{\prime } = t y^{{1}/{3}} \]

[_separable]

3.352

14612

\[ {}y^{\prime } = \frac {1}{2 y+1} \]

[_quadrature]

1.185

14613

\[ {}y^{\prime } = \frac {2 y+1}{t} \]

[_separable]

2.078

14614

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

[_quadrature]

1.878

14615

\[ {}y^{\prime } = \frac {4 t}{1+3 y^{2}} \]

[_separable]

1.187

14616

\[ {}v^{\prime } = t^{2} v-2-2 v+t^{2} \]

[_separable]

1.598

14617

\[ {}y^{\prime } = \frac {1}{t y+t +y+1} \]

[_separable]

1.470

14618

\[ {}y^{\prime } = \frac {{\mathrm e}^{t} y}{1+y^{2}} \]

[_separable]

1.602

14619

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

[_quadrature]

1.557

14620

\[ {}w^{\prime } = \frac {w}{t} \]

[_separable]

1.610

14621

\[ {}y^{\prime } = \sec \left (y\right ) \]

[_quadrature]

1.148

14622

\[ {}x^{\prime } = -t x \]
i.c.

[_separable]

2.269

14623

\[ {}y^{\prime } = t y \]
i.c.

[_separable]

1.954

14624

\[ {}y^{\prime } = -y^{2} \]
i.c.

[_quadrature]

1.468

14625

\[ {}y^{\prime } = t^{2} y^{3} \]
i.c.

[_separable]

4.230

14626

\[ {}y^{\prime } = -y^{2} \]
i.c.

[_quadrature]

1.471

14627

\[ {}y^{\prime } = \frac {t}{y-t^{2} y} \]
i.c.

[_separable]

5.243

14628

\[ {}y^{\prime } = 2 y+1 \]
i.c.

[_quadrature]

1.458

14629

\[ {}y^{\prime } = t y^{2}+2 y^{2} \]
i.c.

[_separable]

2.082

14630

\[ {}x^{\prime } = \frac {t^{2}}{x+t^{3} x} \]
i.c.

[_separable]

2.739

14631

\[ {}y^{\prime } = \frac {1-y^{2}}{y} \]
i.c.

[_quadrature]

7.385

14632

\[ {}y^{\prime } = \left (1+y^{2}\right ) t \]
i.c.

[_separable]

2.653

14633

\[ {}y^{\prime } = \frac {1}{2 y+3} \]
i.c.

[_quadrature]

1.685

14634

\[ {}y^{\prime } = 2 t y^{2}+3 t^{2} y^{2} \]
i.c.

[_separable]

2.084

14635

\[ {}y^{\prime } = \frac {y^{2}+5}{y} \]
i.c.

[_quadrature]

14.966

14636

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

[_quadrature]

0.465

14637

\[ {}y^{\prime } = t^{2}+1 \]

[_quadrature]

0.449

14638

\[ {}y^{\prime } = 1-2 y \]

[_quadrature]

1.248

14639

\[ {}y^{\prime } = 4 y^{2} \]

[_quadrature]

1.292

14640

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

[_quadrature]

2.091

14641

\[ {}y^{\prime } = y+t +1 \]

[[_linear, ‘class A‘]]

1.207

14642

\[ {}y^{\prime } = 3 y \left (1-y\right ) \]
i.c.

[_quadrature]

2.480

14643

\[ {}y^{\prime } = 2 y-t \]
i.c.

[[_linear, ‘class A‘]]

1.494

14644

\[ {}y^{\prime } = \left (y+\frac {1}{2}\right ) \left (y+t \right ) \]
i.c.

[_Riccati]

1.583

14645

\[ {}y^{\prime } = \left (1+t \right ) y \]
i.c.

[_separable]

2.099

14646

\[ {}S^{\prime } = S^{3}-2 S^{2}+S \]
i.c.

[_quadrature]

3.987

14647

\[ {}S^{\prime } = S^{3}-2 S^{2}+S \]
i.c.

[_quadrature]

3.956

14648

\[ {}S^{\prime } = S^{3}-2 S^{2}+S \]
i.c.

[_quadrature]

4.317

14649

\[ {}S^{\prime } = S^{3}-2 S^{2}+S \]
i.c.

[_quadrature]

3.957

14650

\[ {}S^{\prime } = S^{3}-2 S^{2}+S \]
i.c.

[_quadrature]

3.964

14651

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

[_quadrature]

1.819

14652

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

[_quadrature]

1.681

14653

\[ {}y^{\prime } = y^{3}+y^{2} \]

[_quadrature]

4.322

14654

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

[_quadrature]

0.441

14655

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

[_separable]

2.289

14656

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

[_separable]

1.441

14657

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

[_separable]

1.391

14658

\[ {}y^{\prime } = t^{2}-2 \]

[_quadrature]

0.448

14659

\[ {}\theta ^{\prime } = \frac {9}{10}-\frac {11 \cos \left (\theta \right )}{10} \]

[_quadrature]

1.501

14660

\[ {}\theta ^{\prime } = 2 \]

[_quadrature]

0.744

14661

\[ {}\theta ^{\prime } = \frac {11}{10}-\frac {9 \cos \left (\theta \right )}{10} \]

[_quadrature]

1.431

14662

\[ {}v^{\prime } = -\frac {v}{R C} \]

[_quadrature]

0.819

14663

\[ {}v^{\prime } = \frac {K -v}{R C} \]

[_quadrature]

0.696

14664

\[ {}v^{\prime } = 2 V \left (t \right )-2 v \]

[[_linear, ‘class A‘]]

1.145

14665

\[ {}y^{\prime } = 2 y+1 \]
i.c.

[_quadrature]

1.485

14666

\[ {}y^{\prime } = t -y^{2} \]
i.c.

[[_Riccati, _special]]

1.870

14667

\[ {}y^{\prime } = y^{2}-4 t \]
i.c.

[[_Riccati, _special]]

1.934

14668

\[ {}y^{\prime } = \sin \left (y\right ) \]
i.c.

[_quadrature]

5.750

14669

\[ {}w^{\prime } = \left (3-w\right ) \left (w+1\right ) \]
i.c.

[_quadrature]

2.028

14670

\[ {}w^{\prime } = \left (3-w\right ) \left (w+1\right ) \]
i.c.

[_quadrature]

2.001

14671

\[ {}y^{\prime } = {\mathrm e}^{\frac {2}{y}} \]
i.c.

[_quadrature]

3.903

14672

\[ {}y^{\prime } = {\mathrm e}^{\frac {2}{y}} \]
i.c.

[_quadrature]

3.955

14673

\[ {}y^{\prime } = y^{2}-y^{3} \]
i.c.

[_quadrature]

3.933

14674

\[ {}y^{\prime } = 2 y^{3}+t^{2} \]
i.c.

[_Abel]

0.686

14675

\[ {}y^{\prime } = \sqrt {y} \]
i.c.

[_quadrature]

1.080

14676

\[ {}y^{\prime } = 2-y \]
i.c.

[_quadrature]

1.396

14677

\[ {}\theta ^{\prime } = \frac {9}{10}-\frac {11 \cos \left (\theta \right )}{10} \]
i.c.

[_quadrature]

2.537

14678

\[ {}y^{\prime } = y \left (y-1\right ) \left (y-3\right ) \]
i.c.

[_quadrature]

320.033

14679

\[ {}y^{\prime } = y \left (y-1\right ) \left (y-3\right ) \]
i.c.

[_quadrature]

359.671

14680

\[ {}y^{\prime } = y \left (y-1\right ) \left (y-3\right ) \]
i.c.

[_quadrature]

372.846

14681

\[ {}y^{\prime } = y \left (y-1\right ) \left (y-3\right ) \]
i.c.

[_quadrature]

369.155

14682

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

[_quadrature]

1.283

14683

\[ {}y^{\prime } = y^{3} \]
i.c.

[_quadrature]

2.099

14684

\[ {}y^{\prime } = \frac {1}{\left (y+1\right ) \left (t -2\right )} \]
i.c.

[_separable]

1.948

14685

\[ {}y^{\prime } = \frac {1}{\left (y+2\right )^{2}} \]
i.c.

[_quadrature]

1.966

14686

\[ {}y^{\prime } = \frac {t}{y-2} \]
i.c.

[_separable]

3.112

14687

\[ {}y^{\prime } = 3 y \left (y-2\right ) \]
i.c.

[_quadrature]

2.266

14688

\[ {}y^{\prime } = 3 y \left (y-2\right ) \]
i.c.

[_quadrature]

2.343

14689

\[ {}y^{\prime } = 3 y \left (y-2\right ) \]
i.c.

[_quadrature]

2.432

14690

\[ {}y^{\prime } = 3 y \left (y-2\right ) \]
i.c.

[_quadrature]

2.005

14691

\[ {}y^{\prime } = y^{2}-4 y-12 \]
i.c.

[_quadrature]

1.959

14692

\[ {}y^{\prime } = y^{2}-4 y-12 \]
i.c.

[_quadrature]

1.899

14693

\[ {}y^{\prime } = y^{2}-4 y-12 \]
i.c.

[_quadrature]

1.742

14694

\[ {}y^{\prime } = y^{2}-4 y-12 \]
i.c.

[_quadrature]

1.928

14695

\[ {}y^{\prime } = \cos \left (y\right ) \]
i.c.

[_quadrature]

1.552

14696

\[ {}y^{\prime } = \cos \left (y\right ) \]
i.c.

[_quadrature]

3.356

14697

\[ {}y^{\prime } = \cos \left (y\right ) \]
i.c.

[_quadrature]

1.915

14698

\[ {}y^{\prime } = \cos \left (y\right ) \]
i.c.

[_quadrature]

1.549

14699

\[ {}w^{\prime } = w \cos \left (w\right ) \]

[_quadrature]

1.175

14700

\[ {}w^{\prime } = w \cos \left (w\right ) \]
i.c.

[_quadrature]

1.461