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]

4.600

19302

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

[_separable]

3.392

19303

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

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

34.345

19304

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

[_exact, _rational, _Riccati]

6.320

19305

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

[_exact]

4.798

19306

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

[_exact, _rational, _Riccati]

7.039

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)]‘]]

6.923

19308

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

[_separable]

4.723

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]

33.530

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]

9.576

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]

10.616

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]‘]]

4.782

19313

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

6.194

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]

28.203

19315

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

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

11.310

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‘]]

4.700

19317

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

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

6.514

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]‘]]

5.500

19319

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

[_separable]

3.329

19320

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

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

10.964

19321

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

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

8.099

19322

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

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

2.298

19323

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

[‘y=_G(x,y’)‘]

3.820

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‘]]

6.114

19325

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

[_rational, _Bernoulli]

2.797

19326

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

[[_1st_order, _with_linear_symmetries], _rational]

3.520

19327

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

[_separable]

6.563

19328

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

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

3.304

19329

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

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

12.432

19330

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

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

2.333

19331

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

[_separable]

5.104

19332

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

[_linear]

2.449

19333

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

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

748.331

19334

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

[_rational]

3.308

19335

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

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

11.514

19336

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

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

7.810

19337

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

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

6.775

19338

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

[_linear]

2.040

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‘]]

14.374

19340

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

[_linear]

2.059

19341

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

[_linear]

2.625

19342

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

[_linear]

2.543

19343

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

[[_linear, ‘class A‘]]

4.462

19344

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

[_linear]

2.356

19345

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

[_linear]

1.904

19346

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

[_linear]

2.667

19347

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

[_linear]

4.169

19348

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

[_linear]

4.103

19349

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

[_linear]

3.302

19350

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

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

7.816

19351

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

[_Bernoulli]

42.668

19352

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

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

3.349

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]‘]]

3.182

19354

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

[[_1st_order, _with_linear_symmetries]]

3.902

19355

\begin{align*} y^{\prime } x +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‘]]

8.451

19356

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

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

4.762

19357

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

[_linear]

6.579

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]]

1.010

19359

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

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

0.731

19360

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

[[_2nd_order, _missing_x]]

3.986

19361

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

[[_2nd_order, _missing_y]]

0.559

19362

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

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

3.127

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]]

0.822

19364

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

[[_2nd_order, _missing_y]]

0.982

19365

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

0.481

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]]

1.398

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]]

2.090

19368

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

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

3.056

19369

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

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

3.380

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]]

0.794

19371

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

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

43.523

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‘]]

19.372

19373

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

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

20.151

19374

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

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

36.629

19375

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

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

7.448

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]]

2.527

19377

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

[_separable]

6.279

19378

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

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

17.904

19379

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

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

3.839

19380

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

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

0.358

19381

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

[_linear]

2.190

19382

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

[_linear]

2.467

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‘]]

9.735

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]

5.881

19385

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

[[_2nd_order, _missing_y]]

0.639

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]

29.974

19387

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

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

3.967

19388

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

[_linear]

2.816

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‘]]

20.269

19390

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

[_linear]

3.052

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]

6.464

19392

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

[[_2nd_order, _missing_y]]

0.435

19393

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

[NONE]

1.460

19394

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

[‘y=_G(x,y’)‘]

3.362

19395

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

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

100.687

19396

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

[_linear]

2.466

19397

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

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

11.068

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]

118.760

19399

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

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

14.359

19400

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

[_separable]

6.197