2.2.174 Problems 17301 to 17400

Table 2.349: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

17301

\[ {}4 y^{\prime \prime }-y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

2.520

17302

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

[[_Emden, _Fowler]]

2.444

17303

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

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

1.421

17304

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.335

17305

\[ {}x^{2} y^{\prime \prime }+3 x y^{\prime }+\frac {5 y}{4} = 0 \]

[[_Emden, _Fowler]]

2.067

17306

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.194

17307

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

[[_2nd_order, _exact, _linear, _homogeneous]]

0.943

17308

\[ {}x^{2} y^{\prime \prime }-5 x y^{\prime }+9 y = 0 \]

[[_Emden, _Fowler]]

1.147

17309

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

[[_Emden, _Fowler]]

2.857

17310

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

[[_Emden, _Fowler]]

2.846

17311

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

[[_2nd_order, _exact, _linear, _homogeneous]]

2.020

17312

\[ {}4 x^{2} y^{\prime \prime }+8 x y^{\prime }+17 y = 0 \]
i.c.

[[_Emden, _Fowler]]

3.957

17313

\[ {}x^{2} y^{\prime \prime }-5 x y^{\prime }+9 y = 0 \]
i.c.

[[_Emden, _Fowler]]

1.718

17314

\[ {}x^{2} y^{\prime \prime }+3 x y^{\prime }+5 y = 0 \]
i.c.

[[_Emden, _Fowler]]

3.695

17315

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

[[_2nd_order, _missing_x]]

2.788

17316

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{4}+2 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

2.709

17317

\[ {}m y^{\prime \prime }+k y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

23.617

17318

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

[[_2nd_order, _with_linear_symmetries]]

1.050

17319

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 3 \sin \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

11.777

17320

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.117

17321

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

[[_2nd_order, _missing_y]]

2.760

17322

\[ {}y^{\prime \prime }+9 y = t^{2} {\mathrm e}^{3 t}+6 \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.734

17323

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

[[_2nd_order, _with_linear_symmetries]]

1.046

17324

\[ {}y^{\prime \prime }-5 y^{\prime }+4 y = 2 \,{\mathrm e}^{t} \]

[[_2nd_order, _with_linear_symmetries]]

1.080

17325

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

[[_2nd_order, _with_linear_symmetries]]

1.075

17326

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

[[_2nd_order, _with_linear_symmetries]]

1.038

17327

\[ {}4 y^{\prime \prime }-4 y^{\prime }+y = 16 \,{\mathrm e}^{\frac {t}{2}} \]

[[_2nd_order, _with_linear_symmetries]]

1.075

17328

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.838

17329

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.910

17330

\[ {}u^{\prime \prime }+w_{0}^{2} u = \cos \left (w t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.414

17331

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

[[_2nd_order, _linear, _nonhomogeneous]]

28.444

17332

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.474

17333

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

[[_2nd_order, _with_linear_symmetries]]

1.217

17334

\[ {}y^{\prime \prime }+4 y = t^{2}+3 \,{\mathrm e}^{t} \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

5.622

17335

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.596

17336

\[ {}y^{\prime \prime }-2 y^{\prime }-3 y = 3 t \,{\mathrm e}^{2 t} \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.357

17337

\[ {}y^{\prime \prime }+4 y = 3 \sin \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

4.327

17338

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 4 \,{\mathrm e}^{-t} \cos \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

13.163

17339

\[ {}y^{\prime \prime }+3 y^{\prime } = 2 t^{4}+t^{2} {\mathrm e}^{-3 t}+\sin \left (3 t \right ) \]

[[_2nd_order, _missing_y]]

72.711

17340

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.539

17341

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = {\mathrm e}^{t} \cos \left (2 t \right )+{\mathrm e}^{2 t} \left (3 t +4\right ) \sin \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

5.737

17342

\[ {}y^{\prime \prime }+2 y^{\prime }+2 y = 3 \,{\mathrm e}^{-t}+2 \,{\mathrm e}^{-t} \cos \left (t \right )+4 \,{\mathrm e}^{-t} t^{2} \sin \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

9.760

17343

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = 2 t^{2}+4 t \,{\mathrm e}^{2 t}+t \sin \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

32.023

17344

\[ {}y^{\prime \prime }+4 y = t^{2} \sin \left (2 t \right )+\left (6 t +7\right ) \cos \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

6.031

17345

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = {\mathrm e}^{t} \left (t^{2}+1\right ) \sin \left (2 t \right )+3 \,{\mathrm e}^{-t} \cos \left (t \right )+4 \,{\mathrm e}^{t} \]

[[_2nd_order, _linear, _nonhomogeneous]]

73.190

17346

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 3 t \,{\mathrm e}^{-t} \cos \left (2 t \right )-2 t \,{\mathrm e}^{-2 t} \cos \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

95.950

17347

\[ {}y^{\prime \prime }-3 y^{\prime }-4 y = 2 \,{\mathrm e}^{-t} \]

[[_2nd_order, _with_linear_symmetries]]

1.135

17348

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

[[_2nd_order, _with_linear_symmetries]]

1.752

17349

\[ {}x^{2} y^{\prime \prime }+7 x y^{\prime }+5 y = x \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.746

17350

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

[[_2nd_order, _with_linear_symmetries]]

2.337

17351

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

[[_2nd_order, _linear, _nonhomogeneous]]

5.434

17352

\[ {}y^{\prime \prime }+y = \left \{\begin {array}{cc} t & 0\le t \le \pi \\ \pi \,{\mathrm e}^{-t +\pi } & \pi <t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

6.332

17353

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = \left \{\begin {array}{cc} 1 & 0\le t \le \frac {\pi }{2} \\ 0 & \frac {\pi }{2}<t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

17.437

17354

\[ {}y^{\prime \prime }+y = \left \{\begin {array}{cc} A t & 0\le t \le \pi \\ A \left (2 \pi -t \right ) & \pi <t \le 2 \pi \\ 0 & 2 \pi <t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

3.844

17355

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{4}+2 y = 2 \cos \left (w t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

75.172

17356

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.329

17357

\[ {}y^{\prime \prime }+y = 3 \cos \left (w t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.348

17358

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{8}+4 y = 3 \cos \left (\frac {t}{4}\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

74.168

17359

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{8}+4 y = 3 \cos \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

74.541

17360

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{8}+4 y = 3 \cos \left (6 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

76.137

17361

\[ {}y^{\prime \prime }+y+\frac {y^{3}}{5} = \cos \left (w t \right ) \]
i.c.

[NONE]

0.179

17362

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{5}+y+\frac {y^{3}}{5} = \cos \left (w t \right ) \]
i.c.

[NONE]

0.104

17363

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = 2 \,{\mathrm e}^{t} \]

[[_2nd_order, _with_linear_symmetries]]

1.082

17364

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

[[_2nd_order, _with_linear_symmetries]]

1.118

17365

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

[[_2nd_order, _with_linear_symmetries]]

1.086

17366

\[ {}4 y^{\prime \prime }-4 y^{\prime }+y = 16 \,{\mathrm e}^{\frac {t}{2}} \]

[[_2nd_order, _with_linear_symmetries]]

1.074

17367

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.096

17368

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

[[_2nd_order, _linear, _nonhomogeneous]]

8.980

17369

\[ {}y^{\prime \prime }+4 y^{\prime }+4 y = \frac {{\mathrm e}^{2 t}}{t^{2}} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.362

17370

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

[[_2nd_order, _linear, _nonhomogeneous]]

5.502

17371

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

[[_2nd_order, _linear, _nonhomogeneous]]

72.345

17372

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.763

17373

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = g \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.727

17374

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.939

17375

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

[[_2nd_order, _with_linear_symmetries]]

1.610

17376

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

[[_2nd_order, _with_linear_symmetries]]

1.334

17377

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

[[_2nd_order, _with_linear_symmetries]]

1.701

17378

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

[[_2nd_order, _linear, _nonhomogeneous]]

12.612

17379

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

[[_2nd_order, _with_linear_symmetries]]

1.646

17380

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

[[_2nd_order, _linear, _nonhomogeneous]]

8.602

17381

\[ {}t^{2} y^{\prime \prime }-2 y = 3 t^{2}-1 \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.131

17382

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.918

17383

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

[[_2nd_order, _with_linear_symmetries]]

2.023

17384

\[ {}t^{2} y^{\prime \prime }+7 t y^{\prime }+5 y = t \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.859

17385

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.935

17386

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

0.451

17387

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

[[_2nd_order, _with_linear_symmetries]]

0.474

17388

\[ {}y^{\prime \prime }+2 y^{\prime }-2 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.346

17389

\[ {}9 y^{\prime \prime }+12 y^{\prime }+4 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.322

17390

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

[[_2nd_order, _missing_x]]

0.273

17391

\[ {}6 y^{\prime \prime }+5 y^{\prime }+y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.277

17392

\[ {}y^{\prime \prime }-2 y^{\prime }+2 y = t^{2} {\mathrm e}^{t}+7 \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.366

17393

\[ {}y^{\prime \prime }-5 y^{\prime }-6 y = t^{2}+7 \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.307

17394

\[ {}y^{\prime \prime }+4 y = 3 \,{\mathrm e}^{-2 t} \sin \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.461

17395

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = t \cos \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.480

17396

\[ {}y^{\prime \prime \prime }+y^{\prime \prime }+y^{\prime }+y = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.350

17397

\[ {}y^{\prime \prime \prime \prime }-6 y = t \,{\mathrm e}^{-t} \]
i.c.

[[_high_order, _linear, _nonhomogeneous]]

0.829

17398

\[ {}y^{\prime \prime }+16 y = \left \{\begin {array}{cc} 1 & 0\le t <\pi \\ 0 & \pi \le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.818

17399

\[ {}y^{\prime \prime }+y = \left \{\begin {array}{cc} t & 0\le t <1 \\ 0 & 1\le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.919

17400

\[ {}y^{\prime \prime }+4 y = \left \{\begin {array}{cc} t & 0\le t <1 \\ 1 & 1\le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.740