2.2.181 Problems 18001 to 18100

Table 2.379: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

18001

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

[_quadrature]

9.419

18002

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

[_quadrature]

0.498

18003

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

[_quadrature]

11.707

18004

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

[_quadrature]

1.788

18005

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

[_quadrature]

0.888

18006

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

[_quadrature]

1.914

18007

\begin{align*} y^{{2}/{5}}+{y^{\prime }}^{{2}/{5}}&=a^{{2}/{5}} \\ \end{align*}

[_quadrature]

9.696

18008

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

[_quadrature]

0.372

18009

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

[_quadrature]

2.585

18010

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

[_quadrature]

6.201

18011

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

13.536

18012

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

2.928

18013

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

[_dAlembert]

2.279

18014

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

[_dAlembert]

109.871

18015

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

[_dAlembert]

4.151

18016

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

2.487

18017

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.549

18018

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

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

0.636

18019

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

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

3.148

18020

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

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

1.924

18021

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

[[_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], _Riccati]

167.531

18022

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

[[_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], _Riccati]

0.839

18023

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

[[_1st_order, _with_linear_symmetries], _rational, _Riccati]

8.030

18024

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

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

6.086

18025

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

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

1.905

18026

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

[_quadrature]

3.250

18027

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

[[_1st_order, _with_linear_symmetries]]

1.086

18028

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

[_quadrature]

1.033

18029

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

[_quadrature]

9.023

18030

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

[[_homogeneous, ‘class G‘]]

4.089

18031

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

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

4.024

18032

\begin{align*} 8 {y^{\prime }}^{3}-12 {y^{\prime }}^{2}&=-27 x +27 y \\ \end{align*}

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

1.567

18033

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

[_quadrature]

1.490

18034

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

7.474

18035

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

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

55.093

18036

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

[_quadrature]

1.457

18037

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

[[_1st_order, _with_linear_symmetries]]

1.375

18038

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

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

4.109

18039

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

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

12.375

18040

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

[[_homogeneous, ‘class C‘], _Riccati]

5.815

18041

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

[_linear]

9.776

18042

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

[_Bernoulli]

11.474

18043

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

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

72.484

18044

\begin{align*} 5 y x -4 y^{2}-6 x^{2}+\left (y^{2}-8 y x +\frac {5 x^{2}}{2}\right ) y^{\prime }&=0 \\ \end{align*}

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

3.839

18045

\begin{align*} 3 x y^{2}-x^{2}+\left (3 x^{2} y-6 y^{2}-1\right ) y^{\prime }&=0 \\ \end{align*}

[_exact, _rational]

4.070

18046

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

[_Bernoulli]

7.708

18047

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

[_linear]

4.278

18048

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

[[_1st_order, _with_exponential_symmetries]]

4.392

18049

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

[_quadrature]

0.737

18050

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

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

16.829

18051

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

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

95.180

18052

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

[_linear]

3.888

18053

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

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

36.191

18054

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

[_separable]

23.363

18055

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

[_separable]

5.913

18056

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

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

6.727

18057

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

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

24.073

18058

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

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

16.543

18059

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

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

14.971

18060

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

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

13.221

18061

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

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

10.851

18062

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

[_separable]

11.481

18063

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

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

8.734

18064

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

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

17.668

18065

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

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

4.449

18066

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

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

14.225

18067

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

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

24.056

18068

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

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

18.118

18069

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

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

8.762

18070

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

[_Bernoulli]

13.543

18071

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

[_separable]

8.773

18072

\begin{align*} y^{\prime }&=\sqrt {\frac {9 y^{2}-6 y+2}{x^{2}-2 x +5}} \\ \end{align*}

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

9.690

18073

\begin{align*} \left (5 x -7 y+1\right ) y^{\prime }+x +y-1&=0 \\ \end{align*}

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

194.849

18074

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

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

16.020

18075

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

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

13.182

18076

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

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

9.050

18077

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

[[_homogeneous, ‘class G‘]]

6.677

18078

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

[_rational, _dAlembert]

4.136

18079

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.467

18080

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

[[_3rd_order, _quadrature]]

0.461

18081

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

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

1.229

18082

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

[[_2nd_order, _quadrature]]

1.307

18083

\begin{align*} {y^{\prime }}^{4}&=1 \\ \end{align*}

[_quadrature]

3.269

18084

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

[[_2nd_order, _missing_x]]

2.487

18085

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

[[_2nd_order, _missing_x]]

0.530

18086

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

[[_2nd_order, _missing_x]]

11.909

18087

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

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

9.069

18088

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

[[_high_order, _quadrature]]

0.178

18089

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

[[_3rd_order, _quadrature]]

0.318

18090

\begin{align*} y^{\prime \prime } \left (x +2\right )^{5}&=1 \\ y \left (-1\right ) &= {\frac {1}{12}} \\ y^{\prime }\left (-1\right ) &= -{\frac {1}{4}} \\ \end{align*}

[[_2nd_order, _quadrature]]

1.024

18091

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

[[_2nd_order, _quadrature]]

1.678

18092

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

[[_2nd_order, _quadrature]]

2.007

18093

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

[[_2nd_order, _missing_y]]

1.240

18094

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

[[_2nd_order, _missing_y]]

1.525

18095

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

[[_2nd_order, _missing_y]]

1.725

18096

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

[[_2nd_order, _missing_y]]

1.418

18097

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

[[_2nd_order, _missing_y]]

1.118

18098

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

[_separable]

12.331

18099

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

[[_2nd_order, _missing_y], [_2nd_order, _reducible, _mu_poly_yn]]

0.776

18100

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

[[_3rd_order, _missing_x], [_3rd_order, _missing_y], [_3rd_order, _with_linear_symmetries], [_3rd_order, _reducible, _mu_y2]]

5.945