2.2.4 Problems 301 to 400

Table 2.9: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

301

\[ {}y^{\prime \prime \prime }+3 y^{\prime \prime }+4 y^{\prime }-8 y = 0 \]

[[_3rd_order, _missing_x]]

0.072

302

\[ {}y^{\prime \prime \prime \prime }+y^{\prime \prime \prime }-3 y^{\prime \prime }-5 y^{\prime }-2 y = 0 \]

[[_high_order, _missing_x]]

0.072

303

\[ {}y^{\prime \prime \prime }+3 y^{\prime \prime }-54 y = 0 \]

[[_3rd_order, _missing_x]]

0.039

304

\[ {}3 y^{\prime \prime \prime }-2 y^{\prime \prime }+12 y^{\prime }-8 y = 0 \]

[[_3rd_order, _missing_x]]

0.041

305

\[ {}6 y^{\prime \prime \prime \prime }+5 y^{\prime \prime \prime }+25 y^{\prime \prime }+20 y^{\prime }+4 y = 0 \]

[[_high_order, _missing_x]]

0.041

306

\[ {}9 y^{\prime \prime \prime }+11 y^{\prime \prime }+4 y^{\prime }-14 y = 0 \]

[[_3rd_order, _missing_x]]

0.042

307

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

[[_high_order, _missing_x]]

0.092

308

\[ {}y^{\prime \prime \prime }-5 y^{\prime \prime }+100 y^{\prime }-500 y = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.044

309

\[ {}y^{\prime \prime }+2 i y^{\prime }+3 y = 0 \]

[[_2nd_order, _missing_x]]

0.375

310

\[ {}y^{\prime \prime }-i y^{\prime }+6 y = 0 \]

[[_2nd_order, _missing_x]]

0.558

311

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

[[_2nd_order, _missing_x]]

5.520

312

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

[[_3rd_order, _missing_x]]

0.102

313

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

[[_high_order, _missing_x]]

0.088

314

\[ {}a \,x^{3} y^{\prime \prime \prime }+b \,x^{2} y^{\prime \prime }+c x y^{\prime }+d y = 0 \]

[[_3rd_order, _with_linear_symmetries]]

0.743

315

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +9 y = 0 \]

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

1.171

316

\[ {}x^{2} y^{\prime \prime }+7 y^{\prime } x +25 y = 0 \]

[[_Emden, _Fowler]]

1.973

317

\[ {}x^{3} y^{\prime \prime \prime }+6 x^{2} y^{\prime \prime }+4 y^{\prime } x = 0 \]

[[_3rd_order, _missing_y]]

0.115

318

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

[[_3rd_order, _missing_y]]

0.117

319

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

[[_3rd_order, _missing_y]]

0.283

320

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

[[_3rd_order, _missing_y]]

0.122

321

\[ {}x^{3} y^{\prime \prime \prime }+6 x^{2} y^{\prime \prime }+7 y^{\prime } x +y = 0 \]

[[_3rd_order, _exact, _linear, _homogeneous]]

0.121

322

\[ {}y^{\prime \prime }+16 y = {\mathrm e}^{3 x} \]

[[_2nd_order, _with_linear_symmetries]]

3.121

323

\[ {}y^{\prime \prime }-y^{\prime }+2 y = 3 x +4 \]

[[_2nd_order, _with_linear_symmetries]]

12.249

324

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.234

325

\[ {}4 y^{\prime \prime }+4 y^{\prime }+y = 3 x \,{\mathrm e}^{x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.732

326

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

[[_2nd_order, _linear, _nonhomogeneous]]

38.591

327

\[ {}2 y^{\prime \prime }+4 y^{\prime }+7 y = x^{2} \]

[[_2nd_order, _with_linear_symmetries]]

15.132

328

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.039

329

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.691

330

\[ {}y^{\prime \prime }+2 y^{\prime }-3 y = 1+x \,{\mathrm e}^{x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.918

331

\[ {}2 y^{\prime \prime }+9 y = 2 \cos \left (3 x \right )+3 \sin \left (3 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

7.492

332

\[ {}y^{\prime \prime \prime }+4 y^{\prime } = 3 x -1 \]

[[_3rd_order, _missing_y]]

0.110

333

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

[[_3rd_order, _missing_y]]

0.575

334

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = {\mathrm e}^{x} \sin \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

24.217

335

\[ {}y^{\prime \prime \prime \prime }-2 y^{\prime \prime }+y = x \,{\mathrm e}^{x} \]

[[_high_order, _linear, _nonhomogeneous]]

0.135

336

\[ {}y^{\left (5\right )}+5 y^{\prime \prime \prime \prime }-y = 17 \]

[[_high_order, _missing_x]]

0.157

337

\[ {}y^{\prime \prime }+9 y = 2 x^{2} {\mathrm e}^{3 x}+5 \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.811

338

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.475

339

\[ {}y^{\prime \prime \prime \prime }-y^{\prime \prime }+4 y = {\mathrm e}^{x}-x \,{\mathrm e}^{2 x} \]

[[_high_order, _linear, _nonhomogeneous]]

0.208

340

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

[[_high_order, _missing_y]]

0.173

341

\[ {}y^{\prime \prime \prime }-y = {\mathrm e}^{x}+7 \]

[[_3rd_order, _with_linear_symmetries]]

0.129

342

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.970

343

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

[[_high_order, _missing_y]]

0.561

344

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.528

345

\[ {}y^{\prime \prime \prime }-y^{\prime \prime }-12 y^{\prime } = x -2 x \,{\mathrm e}^{-3 x} \]

[[_3rd_order, _missing_y]]

0.163

346

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.137

347

\[ {}y^{\prime \prime }-6 y^{\prime }+13 y = x \,{\mathrm e}^{3 x} \sin \left (3 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

27.128

348

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

[[_high_order, _linear, _nonhomogeneous]]

0.807

349

\[ {}y^{\prime \prime \prime \prime }+9 y^{\prime \prime } = \left (x^{2}+1\right ) \sin \left (3 x \right ) \]

[[_high_order, _missing_y]]

0.554

350

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

[[_high_order, _linear, _nonhomogeneous]]

0.634

351

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

[[_2nd_order, _with_linear_symmetries]]

2.327

352

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = {\mathrm e}^{x} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

1.049

353

\[ {}y^{\prime \prime }+9 y = \sin \left (2 x \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.752

354

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.247

355

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

[[_2nd_order, _with_linear_symmetries]]

7.524

356

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

[[_high_order, _missing_y]]

0.164

357

\[ {}y^{\prime \prime \prime }-2 y^{\prime \prime }+y^{\prime } = 1+x \,{\mathrm e}^{x} \]
i.c.

[[_3rd_order, _missing_y]]

0.621

358

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

[[_2nd_order, _linear, _nonhomogeneous]]

9.159

359

\[ {}y^{\prime \prime \prime }+y^{\prime \prime } = x +{\mathrm e}^{-x} \]
i.c.

[[_3rd_order, _missing_y]]

0.162

360

\[ {}y^{\prime \prime \prime \prime }-y = 5 \]
i.c.

[[_high_order, _missing_x]]

0.122

361

\[ {}y^{\prime \prime \prime \prime }-y^{\prime \prime \prime }-y^{\prime \prime }-y^{\prime }-2 y = 8 x^{5} \]
i.c.

[[_high_order, _linear, _nonhomogeneous]]

0.158

362

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

[[_high_order, _linear, _nonhomogeneous]]

0.600

363

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

[[_2nd_order, _linear, _nonhomogeneous]]

83.638

364

\[ {}y^{\prime \prime }+9 y = \sin \left (x \right )^{4} \]

[[_2nd_order, _linear, _nonhomogeneous]]

4.131

365

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.409

366

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = 4 \,{\mathrm e}^{x} \]

[[_2nd_order, _with_linear_symmetries]]

1.003

367

\[ {}y^{\prime \prime }-2 y^{\prime }-8 y = 3 \,{\mathrm e}^{-2 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.983

368

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = 2 \,{\mathrm e}^{2 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.928

369

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.154

370

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.958

371

\[ {}y^{\prime \prime }+9 y = \sin \left (3 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.022

372

\[ {}y^{\prime \prime }+9 y = 2 \sec \left (3 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.417

373

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.267

374

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.789

375

\[ {}y^{\prime \prime }-4 y = x \,{\mathrm e}^{x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.979

376

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x -y = 72 x^{5} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

3.011

377

\[ {}x^{2} y^{\prime \prime }-4 y^{\prime } x +6 y = x^{3} \]

[[_2nd_order, _with_linear_symmetries]]

3.064

378

\[ {}x^{2} y^{\prime \prime }-3 y^{\prime } x +4 y = x^{4} \]

[[_2nd_order, _with_linear_symmetries]]

2.294

379

\[ {}4 x^{2} y^{\prime \prime }-4 y^{\prime } x +3 y = 8 x^{{4}/{3}} \]

[[_2nd_order, _with_linear_symmetries]]

3.026

380

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

[[_2nd_order, _with_linear_symmetries]]

48.466

381

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

[[_2nd_order, _with_linear_symmetries]]

1.384

382

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.684

383

\[ {}x^{\prime \prime }+9 x = 10 \cos \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.754

384

\[ {}x^{\prime \prime }+4 x = 5 \sin \left (3 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.479

385

\[ {}x^{\prime \prime }+100 x = 225 \cos \left (5 t \right )+300 \sin \left (5 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

3.896

386

\[ {}x^{\prime \prime }+25 x = 90 \cos \left (4 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

4.473

387

\[ {}m x^{\prime \prime }+k x = F_{0} \cos \left (\omega t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.757

388

\[ {}x^{\prime \prime }+4 x^{\prime }+4 x = 10 \cos \left (3 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.573

389

\[ {}x^{\prime \prime }+3 x^{\prime }+5 x = -4 \cos \left (5 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

38.141

390

\[ {}2 x^{\prime \prime }+2 x^{\prime }+x = 3 \sin \left (10 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

16.094

391

\[ {}x^{\prime \prime }+3 x^{\prime }+3 x = 8 \cos \left (10 t \right )+6 \sin \left (10 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

11.950

392

\[ {}x^{\prime \prime }+4 x^{\prime }+5 x = 10 \cos \left (3 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

8.370

393

\[ {}x^{\prime \prime }+6 x^{\prime }+13 x = 10 \sin \left (5 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

22.974

394

\[ {}x^{\prime \prime }+2 x^{\prime }+26 x = 600 \cos \left (10 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

40.873

395

\[ {}x^{\prime \prime }+8 x^{\prime }+25 x = 200 \cos \left (t \right )+520 \sin \left (t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

18.129

396

\[ {}x^{\prime \prime }+2 x^{\prime }+2 x = 2 \cos \left (\omega t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

22.588

397

\[ {}x^{\prime \prime }+4 x^{\prime }+5 x = 10 \cos \left (\omega t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

24.960

398

\[ {}x^{\prime \prime }+6 x^{\prime }+45 x = 50 \cos \left (\omega t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

71.849

399

\[ {}x^{\prime \prime }+10 x^{\prime }+650 x = 100 \cos \left (\omega t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

72.401

400

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

[_quadrature]

0.206