2.3.84 Problems 8301 to 8400

Table 2.741: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

8301

1852

\begin{align*} x^{2} \left (2 x^{2}+1\right ) y^{\prime \prime }+x \left (2 x^{2}+4\right ) y^{\prime }+2 \left (-x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.063

8302

1989

\begin{align*} 8 x^{2} \left (2 x^{2}+1\right ) y^{\prime \prime }+2 x \left (34 x^{2}+5\right ) y^{\prime }-\left (-30 x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.063

8303

3276

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+1+{y^{\prime }}^{2}&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

1.063

8304

6408

\begin{align*} x^{4} y^{\prime \prime }&=-4 y^{2}+x^{2} y^{\prime } \left (x +y^{\prime }\right ) \\ \end{align*}

1.063

8305

14601

\begin{align*} 3 y^{\prime \prime }+4 y^{\prime }-4 y&=0 \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= -4 \\ \end{align*}

1.063

8306

15217

\begin{align*} 2 y^{\prime \prime }-3 y^{\prime }+17 y&=17 t -1 \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

Using Laplace transform method.

1.063

8307

15433

\begin{align*} y^{\prime \prime }+9 y&=6 \,{\mathrm e}^{3 x} \\ \end{align*}

1.063

8308

20181

\begin{align*} x^{2} y^{\prime \prime }-2 \left (x^{2}+x \right ) y^{\prime }+\left (x^{2}+2 x +2\right ) y&=0 \\ \end{align*}

1.063

8309

21223

\begin{align*} x^{\prime }&=x+y \\ y^{\prime }&=x-y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 1 \\ y \left (0\right ) &= 0 \\ \end{align*}

1.063

8310

1358

\begin{align*} u^{\prime \prime }+\frac {u^{\prime }}{8}+4 u&=3 \cos \left (2 t \right ) \\ u \left (0\right ) &= 2 \\ u^{\prime }\left (0\right ) &= 0 \\ \end{align*}

1.064

8311

7759

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=4 \sin \left (x \right ) \\ \end{align*}

1.065

8312

8070

\begin{align*} y^{\prime }&=2 x^{2}+3 y \\ \end{align*}

Series expansion around \(x=0\).

1.065

8313

11319

\begin{align*} y^{\prime }-y^{2}-3 y+4&=0 \\ \end{align*}

1.065

8314

11822

\begin{align*} \left (-a^{2}+x^{2}\right ) {y^{\prime }}^{3}+b x \left (-a^{2}+x^{2}\right ) {y^{\prime }}^{2}+y^{\prime }+b x&=0 \\ \end{align*}

1.065

8315

18116

\begin{align*} y y^{\prime \prime }+{y^{\prime }}^{2}&=0 \\ \end{align*}

1.065

8316

21686

\begin{align*} y^{\prime \prime }-y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.065

8317

21731

\begin{align*} y^{\prime \prime }+y&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Series expansion around \(x=0\).

1.065

8318

3396

\begin{align*} 9 x^{2} y^{\prime \prime }+10 y^{\prime } x +y&=-1+x \\ \end{align*}

Series expansion around \(x=0\).

1.066

8319

6240

\begin{align*} -2 y+y^{\prime } x +x^{4} y^{\prime \prime }&=0 \\ \end{align*}

1.066

8320

12291

\begin{align*} y^{\prime \prime }-\left (x^{2}+1\right ) y&=0 \\ \end{align*}

1.066

8321

23760

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

1.066

8322

1988

\begin{align*} 4 x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+4 x \left (6 x^{2}+1\right ) y^{\prime }-\left (-25 x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.067

8323

3571

\begin{align*} y^{\prime \prime }-2 a y^{\prime }+\left (a^{2}+b^{2}\right ) y&=0 \\ \end{align*}

1.067

8324

5661

\begin{align*} y^{2} {y^{\prime }}^{3}+2 y^{\prime } x -y&=0 \\ \end{align*}

1.067

8325

15048

\begin{align*} y&=y^{\prime } x +{y^{\prime }}^{2} \\ y \left (1\right ) &= -1 \\ \end{align*}

1.067

8326

20542

\begin{align*} x^{2} y^{\prime \prime }&=\ln \left (x \right ) \\ \end{align*}

1.067

8327

21469

\begin{align*} {y^{\prime }}^{2} \left (x^{2}-1\right )-2 y y^{\prime } x +y^{2}-1&=0 \\ \end{align*}

1.067

8328

2436

\begin{align*} \left (-2+t \right )^{2} y^{\prime \prime }+5 \left (-2+t \right ) y^{\prime }+4 y&=0 \\ \end{align*}

1.068

8329

2864

\begin{align*} y^{\prime }&={\mathrm e}^{y} \\ y \left (0\right ) &= 0 \\ \end{align*}

1.068

8330

3358

\begin{align*} 3 x^{2} y^{\prime \prime }+\left (-x^{2}+5 x \right ) y^{\prime }+\left (2 x^{2}-1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.068

8331

9463

\begin{align*} x^{\prime }&=-3 x+4 y \\ y^{\prime }&=-2 x+3 y \\ \end{align*}

1.068

8332

11612

\begin{align*} \left (3 x y^{3}-4 y x +y\right ) y^{\prime }+y^{2} \left (y^{2}-2\right )&=0 \\ \end{align*}

1.068

8333

14681

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=x \,{\mathrm e}^{x} \ln \left (x \right ) \\ \end{align*}

1.068

8334

18869

\begin{align*} y^{\prime \prime }-5 y^{\prime }+6 y&=g \left (t \right ) \\ \end{align*}

1.068

8335

4035

\begin{align*} x^{2} y^{\prime \prime }+x \cos \left (x \right ) y^{\prime }-2 \,{\mathrm e}^{x} y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.069

8336

5891

\begin{align*} -\left (x +1\right ) y+y^{\prime }+y^{\prime \prime } x&=0 \\ \end{align*}

1.069

8337

6024

\begin{align*} \left (b +c \,x^{2 k}\right ) y+a x y^{\prime }+x^{2} y^{\prime \prime }&=0 \\ \end{align*}

1.069

8338

14292

\begin{align*} \frac {x^{\prime \prime }}{2}+\frac {5 x^{\prime }}{6}+\frac {2 x}{9}&=0 \\ x \left (0\right ) &= 1 \\ x^{\prime }\left (0\right ) &= 0 \\ \end{align*}

1.069

8339

17176

\begin{align*} y+y^{\prime }&=\left \{\begin {array}{cc} t & 0\le t <1 \\ 0 & 1\le t \end {array}\right . \\ y \left (0\right ) &= 1 \\ \end{align*}

1.069

8340

19269

\begin{align*} y^{\prime }&={\mathrm e}^{x} \cos \left (x \right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

1.069

8341

23030

\begin{align*} z^{\prime \prime }+6 z^{\prime }+9 z&=0 \\ \end{align*}

1.069

8342

23759

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

1.069

8343

3366

\begin{align*} \left (8-x \right ) x^{2} y^{\prime \prime }+6 y^{\prime } x -y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.070

8344

4029

\begin{align*} x^{2} y^{\prime \prime }-\left (2 \sqrt {5}-1\right ) x y^{\prime }+\left (\frac {19}{4}-3 x^{2}\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.070

8345

7132

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+1+{y^{\prime }}^{2}&=0 \\ \end{align*}

1.070

8346

7452

\begin{align*} 2 x +y \cos \left (y x \right )+\left (x \cos \left (y x \right )-2 y\right ) y^{\prime }&=0 \\ \end{align*}

1.070

8347

7657

\begin{align*} w^{\prime }+w x&={\mathrm e}^{x} \\ \end{align*}

Series expansion around \(x=0\).

1.070

8348

10242

\begin{align*} y^{\prime }+y&=\frac {1}{x} \\ \end{align*}

Series expansion around \(x=0\).

1.070

8349

18217

\begin{align*} y^{\prime \prime }+y&=x^{2} \sin \left (x \right ) \\ \end{align*}

1.070

8350

1996

\begin{align*} 3 x^{2} \left (x +1\right )^{2} y^{\prime \prime }-x \left (-11 x^{2}-10 x +1\right ) y^{\prime }+\left (5 x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.071

8351

7581

\begin{align*} y^{\prime \prime }+25 y&=\cos \left (\omega t \right ) \\ \end{align*}

1.071

8352

14428

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=0 \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

1.071

8353

18333

\begin{align*} y^{\prime \prime } x +\left (2 x -1\right ) y^{\prime }&=-4 x^{2} \\ \end{align*}

1.071

8354

18642

\begin{align*} x^{\prime }&=-x-4 y-4 \\ y^{\prime }&=x-y-6 \\ \end{align*}

1.071

8355

153

\begin{align*} y y^{\prime \prime }+{y^{\prime }}^{2}&=y y^{\prime } \\ \end{align*}

1.072

8356

2531

\begin{align*} y^{\prime }&={\mathrm e}^{-t}+\ln \left (1+y^{2}\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

1.072

8357

9459

\begin{align*} x^{\prime }&=x+2 y \\ y^{\prime }&=3 x+2 y \\ \end{align*}

1.072

8358

12326

\begin{align*} y^{\prime \prime }-4 y^{\prime } x +\left (4 x^{2}-3\right ) y-{\mathrm e}^{x^{2}}&=0 \\ \end{align*}

1.072

8359

13884

\begin{align*} 4 \left (x^{2}+1\right )^{2} y^{\prime \prime }+\left (a \,x^{2}+a -3\right ) y&=0 \\ \end{align*}

1.072

8360

14599

\begin{align*} y^{\prime \prime }+7 y^{\prime }+10 y&=0 \\ y \left (0\right ) &= -4 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

1.072

8361

16110

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=\cos \left (t \right ) \\ \end{align*}

1.072

8362

17518

\begin{align*} y^{\prime \prime }+9 y&=\sec \left (3 t \right ) \tan \left (3 t \right ) \\ \end{align*}

1.072

8363

21914

\begin{align*} y^{\prime \prime }-2 y^{\prime }-3 y&=2 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= {\frac {3}{2}} \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

Using Laplace transform method.

1.072

8364

1494

\begin{align*} y^{\prime \prime }+y&=\left \{\begin {array}{cc} t & 0\le t <1 \\ 2-t & 1\le t <2 \\ 0 & 2\le t <\infty \end {array}\right . \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.073

8365

1830

\begin{align*} x^{2} y^{\prime \prime }-4 y^{\prime } x +\left (x^{2}+6\right ) y&=x^{4} \\ \end{align*}

1.073

8366

6455

\begin{align*} g \left (x \right ) y^{2}+f \left (x \right ) y y^{\prime }+a {y^{\prime }}^{2}+y y^{\prime \prime }&=0 \\ \end{align*}

1.073

8367

8121

\begin{align*} y^{\prime \prime }+y&=0 \\ \end{align*}

Series expansion around \(x=1\).

1.073

8368

14185

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{x}&=0 \\ \end{align*}

1.073

8369

16034

\begin{align*} x^{\prime }&=-3 x-y \\ y^{\prime }&=4 x+y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= -1 \\ y \left (0\right ) &= 2 \\ \end{align*}

1.073

8370

16070

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&={\mathrm e}^{4 t} \\ \end{align*}

1.073

8371

23511

\begin{align*} y^{\prime \prime \prime }+y^{\prime }&=x \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ y^{\prime \prime }\left (0\right ) &= 0 \\ \end{align*}

1.073

8372

24747

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right ) \\ \end{align*}

1.073

8373

3361

\begin{align*} 9 x^{2} y^{\prime \prime }+9 \left (-x^{2}+x \right ) y^{\prime }+\left (-1+x \right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.074

8374

3362

\begin{align*} 4 \left (1-x \right ) x^{2} y^{\prime \prime }+3 x \left (2 x +1\right ) y^{\prime }-3 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.075

8375

7796

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=4 \cos \left (x \right ) \\ \end{align*}

1.075

8376

9695

\begin{align*} x^{\prime }&=x \\ y^{\prime }&=2 x+2 y-z \\ z^{\prime }&=y \\ \end{align*}

1.075

8377

10001

\begin{align*} y^{\prime }&=\frac {1}{x} \\ \end{align*}

1.075

8378

20537

\begin{align*} \cos \left (x \right )^{2} y^{\prime \prime }&=1 \\ \end{align*}

1.075

8379

21543

\begin{align*} y^{\prime \prime }-y&={\mathrm e}^{x} \\ \end{align*}

1.075

8380

575

\begin{align*} x^{\prime \prime }+4 x^{\prime }+8 x&=f \left (t \right ) \\ x \left (0\right ) &= 0 \\ x^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.076

8381

7594

\begin{align*} y^{\prime \prime }+2 y^{\prime }-8 y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= -12 \\ \end{align*}

1.076

8382

12903

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+1+{y^{\prime }}^{2}&=0 \\ \end{align*}

1.076

8383

12997

\begin{align*} \left (1+y^{2}\right ) y^{\prime \prime }-3 y {y^{\prime }}^{2}&=0 \\ \end{align*}

1.076

8384

13065

\begin{align*} x^{\prime }&=-y \\ y^{\prime }&=2 x+2 y \\ \end{align*}

1.076

8385

15696

\begin{align*} 2 y+y^{\prime }&=4 \\ \end{align*}

Using Laplace transform method.

1.076

8386

17079

\begin{align*} y^{\prime }+k y&=0 \\ \end{align*}

1.076

8387

18266

\begin{align*} 6 y-5 y^{\prime }+y^{\prime \prime }&=\left (12 x -7\right ) {\mathrm e}^{-x} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

1.076

8388

5777

\begin{align*} y+2 y^{\prime }+y^{\prime \prime }&=\cos \left (x \right ) {\mathrm e}^{-x} \\ \end{align*}

1.078

8389

6419

\begin{align*} 2 f \left (x \right )^{2} y^{\prime \prime }&=2 f \left (x \right )^{2} y^{3}+f \left (x \right ) y^{2} f^{\prime }\left (x \right )+f \left (x \right ) \left (-2 f \left (x \right ) y+3 f^{\prime }\left (x \right )\right ) y^{\prime }+y \left (-2 f \left (x \right )^{3}-2 {f^{\prime }\left (x \right )}^{2}+f \left (x \right ) f^{\prime \prime }\left (x \right )\right ) \\ \end{align*}

1.078

8390

21140

\begin{align*} x^{\prime \prime }+4 x&=\cos \left (t \right ) \\ \end{align*}

1.078

8391

25930

\begin{align*} y^{\prime \prime }-2 y^{\prime }+2 y&=0 \\ \end{align*}

1.078

8392

1956

\begin{align*} 2 x^{2} y^{\prime \prime }+x \left (x +5\right ) y^{\prime }-\left (2-3 x \right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.079

8393

3902

\begin{align*} x_{1}^{\prime }&=2 x_{1}-2 x_{2}+x_{3} \\ x_{2}^{\prime }&=x_{1}-4 x_{2}+x_{3} \\ x_{3}^{\prime }&=2 x_{1}+2 x_{2}-3 x_{3} \\ \end{align*}

1.079

8394

5648

\begin{align*} {y^{\prime }}^{3} x -2 y {y^{\prime }}^{2}+4 x^{2}&=0 \\ \end{align*}

1.079

8395

9652

\begin{align*} y^{\prime \prime }+2 y^{\prime }+10 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

1.079

8396

12378

\begin{align*} y^{\prime \prime } x -\left (x +1\right ) y^{\prime }-2 \left (-1+x \right ) y&=0 \\ \end{align*}

1.079

8397

20921

\begin{align*} x^{\prime }&=2 x+3 y+2 \sin \left (2 t \right ) \\ y^{\prime }&=-3 x+2 y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 1 \\ y \left (0\right ) &= 0 \\ \end{align*}

1.079

8398

2178

\begin{align*} y^{\prime \prime \prime }-2 y^{\prime \prime }+y^{\prime }-2 y&=-{\mathrm e}^{x} \left (\left (4 x^{2}+5 x +9\right ) \cos \left (2 x \right )-\left (-3 x^{2}-5 x +6\right ) \sin \left (2 x \right )\right ) \\ \end{align*}

1.080

8399

8120

\begin{align*} y^{\prime }-\frac {y}{x}&=\cos \left (x \right ) \\ \end{align*}

Series expansion around \(x=0\).

1.080

8400

9475

\begin{align*} x^{\prime }&=5 x+3 y \\ y^{\prime }&=-6 x-4 y \\ \end{align*}

1.080