2.2.194 Problems 19301 to 19400

Table 2.405: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

19301

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

[_separable]

3.599

19302

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

[_separable]

4.332

19303

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

[_exact, [_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

39.875

19304

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

[_exact, _rational, _Riccati]

8.398

19305

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

[_exact]

4.458

19306

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

[_exact, _rational, _Riccati]

8.882

19307

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

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

8.892

19308

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

[_separable]

3.796

19309

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

[_exact]

33.441

19310

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

[_exact, _Bernoulli]

15.747

19311

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

[_separable]

12.393

19312

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

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

3.740

19313

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

8.874

19314

\begin{align*} \frac {4 y^{2}-2 x^{2}}{4 x y^{2}-x^{3}}+\frac {\left (8 y^{2}-x^{2}\right ) y^{\prime }}{4 y^{3}-x^{2} y}&=0 \\ \end{align*}

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

36.023

19315

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

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

16.442

19316

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

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

5.176

19317

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

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

8.707

19318

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

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

5.507

19319

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

[_separable]

3.817

19320

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

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

13.792

19321

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

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

10.341

19322

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

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

2.231

19323

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

[‘y=_G(x,y’)‘]

3.330

19324

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

[_rational, [_Abel, ‘2nd type‘, ‘class B‘]]

5.161

19325

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

[_rational, _Bernoulli]

2.525

19326

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

[[_1st_order, _with_linear_symmetries], _rational]

3.028

19327

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

[_separable]

6.131

19328

\begin{align*} x y^{\prime }&=x^{5}+x^{3} y^{2}+y \\ \end{align*}

[[_homogeneous, ‘class D‘], _rational, _Riccati]

3.614

19329

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

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

15.554

19330

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

[[_homogeneous, ‘class D‘], _rational, _Riccati]

2.178

19331

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

[_separable]

3.886

19332

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

[_linear]

2.404

19333

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

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

857.964

19334

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

[_rational]

3.460

19335

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

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

15.527

19336

\begin{align*} x y^{\prime }+y+x^{2} y^{5} y^{\prime }&=0 \\ \end{align*}

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

14.852

19337

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

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

9.605

19338

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

[_linear]

2.449

19339

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

[[_homogeneous, ‘class G‘]]

16.494

19340

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

[_linear]

2.457

19341

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

[_linear]

2.832

19342

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

[_linear]

3.095

19343

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

[[_linear, ‘class A‘]]

5.249

19344

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

[_linear]

2.954

19345

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

[_linear]

2.437

19346

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

[_linear]

3.209

19347

\begin{align*} y^{\prime }-2 y x&=6 x \,{\mathrm e}^{x^{2}} \\ \end{align*}

[_linear]

4.973

19348

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

[_linear]

3.164

19349

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

[_linear]

3.874

19350

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

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

12.591

19351

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

[_Bernoulli]

39.433

19352

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

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

3.828

19353

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

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

3.112

19354

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

[[_1st_order, _with_linear_symmetries]]

3.834

19355

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘], [_Abel, ‘2nd type‘, ‘class C‘]]

10.780

19356

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

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

4.820

19357

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

[_linear]

7.289

19358

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

1.329

19359

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

[[_2nd_order, _missing_y], [_2nd_order, _reducible, _mu_y_y1]]

0.872

19360

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

[[_2nd_order, _missing_x]]

6.180

19361

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

[[_2nd_order, _missing_y]]

0.585

19362

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

2.697

19363

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

[[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

0.872

19364

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

[[_2nd_order, _missing_y]]

1.362

19365

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

[[_2nd_order, _missing_y], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_poly_yn]]

0.598

19366

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

[[_2nd_order, _missing_x], [_2nd_order, _with_potential_symmetries], [_2nd_order, _reducible, _mu_xy]]

0.668

19367

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_xy]]

0.822

19368

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

5.785

19369

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

4.177

19370

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

[[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

0.863

19371

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

[[_homogeneous, ‘class G‘], _rational, [_Abel, ‘2nd type‘, ‘class B‘]]

51.392

19372

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

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

21.967

19373

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

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

23.434

19374

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

[[_homogeneous, ‘class G‘], _rational, [_Abel, ‘2nd type‘, ‘class B‘]]

58.503

19375

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

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

7.361

19376

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

2.493

19377

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

[_separable]

5.831

19378

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

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

68.481

19379

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

[_exact, [_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

3.599

19380

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

[[_2nd_order, _missing_y], [_2nd_order, _reducible, _mu_y_y1]]

0.401

19381

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

[_linear]

2.108

19382

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

[_linear]

2.366

19383

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

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

9.253

19384

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

[[_1st_order, _with_linear_symmetries], _exact]

5.347

19385

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

[[_2nd_order, _missing_y]]

0.795

19386

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

[_exact]

30.478

19387

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

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

3.539

19388

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

[_linear]

2.835

19389

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

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

22.507

19390

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

[_linear]

3.153

19391

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

[_exact]

6.339

19392

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

[[_2nd_order, _missing_y]]

0.565

19393

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

[NONE]

1.460

19394

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

[‘y=_G(x,y’)‘]

3.201

19395

\begin{align*} x^{2} y^{4}+x^{6}-x^{3} y^{3} y^{\prime }&=0 \\ \end{align*}

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

98.308

19396

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

[_linear]

2.457

19397

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

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

11.951

19398

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

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

115.187

19399

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

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

15.552

19400

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

[_separable]

5.724