2.2.144 Problems 14301 to 14400

Table 2.289: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

14301

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

[_separable]

4.092

14302

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

[_quadrature]

1.150

14303

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

[_separable]

5.288

14304

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

[_quadrature]

1.286

14305

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

[_separable]

1.878

14306

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

[_separable]

2.591

14307

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

[_quadrature]

7.452

14308

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

[_separable]

2.411

14309

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

[_quadrature]

1.501

14310

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

[_separable]

1.805

14311

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

[_quadrature]

15.671

14312

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

[_quadrature]

0.269

14313

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

[_quadrature]

0.270

14314

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

[_quadrature]

1.044

14315

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

[_quadrature]

0.932

14316

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

[_quadrature]

1.764

14317

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

[[_linear, ‘class A‘]]

0.989

14318

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

[_quadrature]

2.223

14319

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

[[_linear, ‘class A‘]]

1.274

14320

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

[_Riccati]

1.565

14321

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

[_separable]

1.693

14322

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

[_quadrature]

3.940

14323

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

[_quadrature]

3.899

14324

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

[_quadrature]

4.599

14325

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

[_quadrature]

3.911

14326

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

[_quadrature]

3.888

14327

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

[_quadrature]

1.485

14328

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

[_quadrature]

1.364

14329

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

[_quadrature]

4.295

14330

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

[_quadrature]

0.269

14331

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

[_separable]

2.022

14332

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

[_separable]

1.108

14333

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

[_separable]

1.065

14334

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

[_quadrature]

0.261

14335

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

[_quadrature]

1.303

14336

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

[_quadrature]

0.464

14337

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

[_quadrature]

1.251

14338

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

[_quadrature]

0.913

14339

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

[_quadrature]

0.752

14340

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

[[_linear, ‘class A‘]]

1.231

14341

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

[_quadrature]

1.261

14342

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

[[_Riccati, _special]]

1.850

14343

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

[[_Riccati, _special]]

1.910

14344

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

[_quadrature]

5.816

14345

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

[_quadrature]

1.819

14346

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

[_quadrature]

1.839

14347

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

[_quadrature]

3.846

14348

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

[_quadrature]

3.859

14349

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

[_quadrature]

3.944

14350

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

[_Abel]

0.723

14351

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

[_quadrature]

1.387

14352

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

[_quadrature]

1.173

14353

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

[_quadrature]

2.336

14354

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

[_quadrature]

319.271

14355

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

[_quadrature]

362.453

14356

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

[_quadrature]

371.357

14357

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

[_quadrature]

364.684

14358

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

[_quadrature]

0.933

14359

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

[_quadrature]

1.839

14360

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

[_separable]

1.747

14361

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

[_quadrature]

1.745

14362

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

[_separable]

2.906

14363

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

[_quadrature]

2.024

14364

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

[_quadrature]

2.091

14365

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

[_quadrature]

2.073

14366

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

[_quadrature]

1.921

14367

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

[_quadrature]

1.767

14368

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

[_quadrature]

1.826

14369

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

[_quadrature]

1.763

14370

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

[_quadrature]

1.772

14371

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

[_quadrature]

1.464

14372

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

[_quadrature]

3.353

14373

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

[_quadrature]

1.921

14374

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

[_quadrature]

1.402

14375

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

[_quadrature]

0.950

14376

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

[_quadrature]

1.219

14377

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

[_quadrature]

1.320

14378

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

[_quadrature]

1.323

14379

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

[_quadrature]

1.303

14380

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

[_quadrature]

4.313

14381

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

[_quadrature]

0.968

14382

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

[_quadrature]

1.006

14383

\[ {}w^{\prime } = 3 w^{3}-12 w^{2} \]

[_quadrature]

3.552

14384

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

[_quadrature]

1.029

14385

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

[_quadrature]

1.083

14386

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

[_quadrature]

1.359

14387

\[ {}w^{\prime } = \left (w^{2}-2\right ) \arctan \left (w\right ) \]

[_quadrature]

1.694

14388

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

[_quadrature]

1.534

14389

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

[_quadrature]

1.343

14390

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

[_quadrature]

1.464

14391

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

[_quadrature]

1.525

14392

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

[_quadrature]

1.522

14393

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

[_quadrature]

1.471

14394

\[ {}y^{\prime } = y \cos \left (\frac {\pi y}{2}\right ) \]

[_quadrature]

1.188

14395

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

[_quadrature]

1.612

14396

\[ {}y^{\prime } = y \sin \left (\frac {\pi y}{2}\right ) \]

[_quadrature]

1.236

14397

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

[_quadrature]

3.559

14398

\[ {}y^{\prime } = \cos \left (\frac {\pi y}{2}\right ) \]

[_quadrature]

2.204

14399

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

[_quadrature]

1.400

14400

\[ {}y^{\prime } = y \sin \left (\frac {\pi y}{2}\right ) \]

[_quadrature]

1.230