2.2.154 Problems 15301 to 15400

Table 2.325: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

15301

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.162

15302

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.483

15303

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

[[_2nd_order, _with_linear_symmetries]]

1.534

15304

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

[[_2nd_order, _with_linear_symmetries]]

1.271

15305

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

Series expansion around \(x=0\).

[_Jacobi]

1.731

15306

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.426

15307

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.583

15308

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.263

15309

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.349

15310

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.737

15311

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.834

15312

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

8.792

15313

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

[[_Emden, _Fowler]]

5.809

15314

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

[[_Emden, _Fowler]]

0.723

15315

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

[[_Emden, _Fowler]]

0.525

15316

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

[[_2nd_order, _missing_x]]

6.328

15317

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

[[_2nd_order, _missing_x]]

6.472

15318

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

[[_2nd_order, _missing_x]]

1.858

15319

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

[_Gegenbauer]

115.567

15320

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.980

15321

\begin{align*} y^{\prime \prime }+9 y&=18 t \\ y \left (0\right ) &= 0 \\ y \left (\frac {\pi }{2}\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.791

15322

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.544

15323

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=\left \{\begin {array}{cc} t & 0\le t \le 3 \\ t +2 & 3<t \end {array}\right . \\ y \left (0\right ) &= -2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

10.265

15324

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

With initial conditions

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

system_of_ODEs

1.014

15325

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

Using Laplace transform method.

[_erf]

1.223

15326

\begin{align*} c v^{\prime \prime }+\frac {v^{\prime }}{r}+\frac {v}{L}&=\delta \left (t -1\right )-\delta \left (t \right ) \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

6.803

15327

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

[_linear]

5.198

15328

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.882

15329

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

5.348

15330

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

[_rational]

158.413

15331

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

[[_3rd_order, _missing_y]]

0.885

15332

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

[[_2nd_order, _with_linear_symmetries]]

1.065

15333

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

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

5.508

15334

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

[[_2nd_order, _missing_y]]

0.956

15335

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

[_separable]

6.102

15336

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

[_separable]

10.058

15337

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

[_separable]

7.510

15338

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

[_separable]

15.386

15339

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

[_separable]

6.507

15340

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

[_separable]

9.735

15341

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

[_separable]

7.939

15342

\begin{align*} 1+s^{2}-\sqrt {t}\, s^{\prime }&=0 \\ \end{align*}

[_separable]

9.344

15343

\begin{align*} r^{\prime }+r \tan \left (t \right )&=0 \\ \end{align*}

[_separable]

6.925

15344

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

[_separable]

11.155

15345

\begin{align*} y^{\prime } \sqrt {-x^{2}+1}-\sqrt {1-y^{2}}&=0 \\ \end{align*}

[_separable]

23.822

15346

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

[_separable]

7.607

15347

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

[_separable]

9.107

15348

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

[[_homogeneous, ‘class A‘], _exact, _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

46.894

15349

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

[_linear]

12.452

15350

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

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

22.634

15351

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

27.001

15352

\begin{align*} \left (7 x +5 y\right ) y^{\prime }+10 x +8 y&=0 \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

35.845

15353

\begin{align*} 2 \sqrt {t s}-s+t s^{\prime }&=0 \\ \end{align*}

[[_homogeneous, ‘class A‘], _dAlembert]

35.827

15354

\begin{align*} t -s+t s^{\prime }&=0 \\ \end{align*}

[_linear]

6.657

15355

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

[[_homogeneous, ‘class A‘], _rational, _Bernoulli]

21.640

15356

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

[[_homogeneous, ‘class A‘], _dAlembert]

36.719

15357

\begin{align*} 3 y-7 x +7-\left (3 x -7 y-3\right ) y^{\prime }&=0 \\ \end{align*}

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

101.931

15358

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

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

20.075

15359

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

[_linear]

6.358

15360

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

[[_homogeneous, ‘class A‘], _dAlembert]

80.047

15361

\begin{align*} \frac {y y^{\prime }+x}{\sqrt {x^{2}+y^{2}}}&=m \\ \end{align*}

[[_homogeneous, ‘class A‘], _exact, _dAlembert]

127.216

15362

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

19.545

15363

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

38.015

15364

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

[_linear]

6.966

15365

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

[_linear]

9.880

15366

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

[_linear]

4.187

15367

\begin{align*} s^{\prime } \cos \left (t \right )+s \sin \left (t \right )&=1 \\ \end{align*}

[_linear]

5.000

15368

\begin{align*} s^{\prime }+s \cos \left (t \right )&=\frac {\sin \left (2 t \right )}{2} \\ \end{align*}

[_linear]

5.288

15369

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

[_linear]

5.590

15370

\begin{align*} y^{\prime }+\frac {n y}{x}&=a \,x^{-n} \\ \end{align*}

[_linear]

5.707

15371

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

[[_linear, ‘class A‘]]

3.191

15372

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

[_linear]

6.025

15373

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

[_Bernoulli]

7.189

15374

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

[_separable]

20.723

15375

\begin{align*} 3 y^{2} y^{\prime }-a y^{3}-x -1&=0 \\ \end{align*}

[_rational, _Bernoulli]

5.197

15376

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

6.850

15377

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

[_Bernoulli]

16.195

15378

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

[_Bernoulli]

10.599

15379

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

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], [_Abel, ‘2nd type‘, ‘class A‘]]

9.594

15380

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

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], [_Abel, ‘2nd type‘, ‘class A‘]]

10.337

15381

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

[[_homogeneous, ‘class G‘], _exact, _rational]

43.544

15382

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

[_exact, _rational]

7.737

15383

\begin{align*} 6 x y^{2}+4 x^{3}+3 \left (2 x^{2} y+y^{2}\right ) y^{\prime }&=0 \\ \end{align*}

[_exact, _rational]

5.035

15384

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

[[_homogeneous, ‘class A‘], _exact, _rational, [_Abel, ‘2nd type‘, ‘class C‘], _dAlembert]

19.905

15385

\begin{align*} \frac {1}{x^{2}}+\frac {3 y^{2}}{x^{4}}&=\frac {2 y y^{\prime }}{x^{3}} \\ \end{align*}

[[_homogeneous, ‘class A‘], _exact, _rational, _Bernoulli]

30.918

15386

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

[_separable]

13.929

15387

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

7.246

15388

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

5.847

15389

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

[[_homogeneous, ‘class C‘], _rational, _dAlembert]

2.054

15390

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

3.750

15391

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

5.329

15392

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

[_quadrature]

0.524

15393

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

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

7.768

15394

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

[_separable]

6.948

15395

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

[[_homogeneous, ‘class G‘], _rational, _Clairaut]

5.531

15396

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

2.861

15397

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

[_linear]

8.579

15398

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

[[_3rd_order, _missing_x]]

0.120

15399

\begin{align*} y^{\prime \prime }&=\frac {1}{2 y^{\prime }} \\ \end{align*}

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_poly_yn]]

5.814

15400

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

[[_3rd_order, _quadrature]]

0.529