2.2.101 Problems 10001 to 10100

Table 2.203: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

10001

\[ {}\left (x^{2}-x \right ) y^{\prime \prime }-x y^{\prime }+y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.192

10002

\[ {}x^{2} \left (-x^{2}+2\right ) y^{\prime \prime }-x \left (4 x^{2}+3\right ) y^{\prime }+\left (-2 x^{2}+2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.582

10003

\[ {}y^{\prime \prime } = \frac {\left (4 x^{6}-8 x^{5}+12 x^{4}+4 x^{3}+7 x^{2}-20 x +4\right ) y}{4 x^{4}} \]

[[_2nd_order, _with_linear_symmetries]]

0.633

10004

\[ {}y^{\prime \prime } = \left (\frac {6}{x^{2}}-1\right ) y \]

[[_2nd_order, _with_linear_symmetries]]

0.373

10005

\[ {}y^{\prime \prime } = \left (\frac {x^{2}}{4}-\frac {11}{2}\right ) y \]

[[_2nd_order, _with_linear_symmetries]]

0.342

10006

\[ {}y^{\prime \prime } = \left (\frac {1}{x}-\frac {3}{16 x^{2}}\right ) y \]

[[_2nd_order, _with_linear_symmetries]]

0.182

10007

\[ {}y^{\prime \prime } = \left (-\frac {3}{16 x^{2}}-\frac {2}{9 \left (-1+x \right )^{2}}+\frac {3}{16 x \left (-1+x \right )}\right ) y \]

[[_2nd_order, _with_linear_symmetries]]

1.125

10008

\[ {}y^{\prime \prime } = -\frac {\left (5 x^{2}+27\right ) y}{36 \left (x^{2}-1\right )^{2}} \]

[[_2nd_order, _with_linear_symmetries]]

119.425

10009

\[ {}y^{\prime \prime } = -\frac {y}{4 x^{2}} \]

[[_Emden, _Fowler]]

0.154

10010

\[ {}y^{\prime \prime } = \left (x^{2}+3\right ) y \]

[[_2nd_order, _with_linear_symmetries]]

0.296

10011

\[ {}x^{2} y^{\prime \prime } = 2 y \]

[[_2nd_order, _exact, _linear, _homogeneous]]

0.126

10012

\[ {}y^{\prime \prime }+4 x y^{\prime }+\left (4 x^{2}+2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.092

10013

\[ {}x^{2} y^{\prime \prime }-2 x y^{\prime }+\left (x^{2}+2\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.159

10014

\[ {}\left (-2+x \right )^{2} y^{\prime \prime }-\left (-2+x \right ) y^{\prime }-3 y = 0 \]

[[_2nd_order, _exact, _linear, _homogeneous]]

0.161

10015

\[ {}y^{\prime }-\frac {1}{\sqrt {\operatorname {a4} \,x^{4}+\operatorname {a3} \,x^{3}+\operatorname {a2} \,x^{2}+\operatorname {a1} x +\operatorname {a0}}} = 0 \]

[_quadrature]

3.981

10016

\[ {}y^{\prime }+a y-c \,{\mathrm e}^{b x} = 0 \]

[[_linear, ‘class A‘]]

0.940

10017

\[ {}y^{\prime }+a y-b \sin \left (c x \right ) = 0 \]

[[_linear, ‘class A‘]]

1.403

10018

\[ {}y^{\prime }+2 x y-x \,{\mathrm e}^{-x^{2}} = 0 \]

[_linear]

2.561

10019

\[ {}y^{\prime }+y \cos \left (x \right )-{\mathrm e}^{2 x} = 0 \]

[_linear]

1.898

10020

\[ {}y^{\prime }+y \cos \left (x \right )-\frac {\sin \left (2 x \right )}{2} = 0 \]

[_linear]

2.399

10021

\[ {}y^{\prime }+y \cos \left (x \right )-{\mathrm e}^{-\sin \left (x \right )} = 0 \]

[_linear]

1.827

10022

\[ {}y^{\prime }+y \tan \left (x \right )-\sin \left (2 x \right ) = 0 \]

[_linear]

1.949

10023

\[ {}y^{\prime }-\left (\sin \left (\ln \left (x \right )\right )+\cos \left (\ln \left (x \right )\right )+a \right ) y = 0 \]

[_separable]

1.909

10024

\[ {}y^{\prime }+f^{\prime }\left (x \right ) y-f \left (x \right ) f^{\prime }\left (x \right ) = 0 \]

[_linear]

0.542

10025

\[ {}y^{\prime }+f \left (x \right ) y-g \left (x \right ) = 0 \]

[_linear]

1.023

10026

\[ {}y^{\prime }+y^{2}-1 = 0 \]

[_quadrature]

2.483

10027

\[ {}y^{\prime }+y^{2}-a x -b = 0 \]

[_Riccati]

1.196

10028

\[ {}y^{\prime }+y^{2}+a \,x^{m} = 0 \]

[[_Riccati, _special]]

1.566

10029

\[ {}y^{\prime }+y^{2}-2 x^{2} y+x^{4}-2 x -1 = 0 \]

[[_1st_order, _with_linear_symmetries], _Riccati]

1.759

10030

\[ {}y^{\prime }+y^{2}+\left (x y-1\right ) f \left (x \right ) = 0 \]

[_Riccati]

1.757

10031

\[ {}y^{\prime }-y^{2}-3 y+4 = 0 \]

[_quadrature]

1.908

10032

\[ {}y^{\prime }-y^{2}-x y-x +1 = 0 \]

[_Riccati]

1.487

10033

\[ {}y^{\prime }-\left (x +y\right )^{2} = 0 \]

[[_homogeneous, ‘class C‘], _Riccati]

1.475

10034

\[ {}y^{\prime }-y^{2}+\left (x^{2}+1\right ) y-2 x = 0 \]

[_Riccati]

1.635

10035

\[ {}y^{\prime }-y^{2}+y \sin \left (x \right )-\cos \left (x \right ) = 0 \]

[_Riccati]

2.954

10036

\[ {}y^{\prime }-y^{2}-y \sin \left (2 x \right )-\cos \left (2 x \right ) = 0 \]

[_Riccati]

5.901

10037

\[ {}y^{\prime }+a y^{2}-b = 0 \]

[_quadrature]

2.182

10038

\[ {}y^{\prime }+a y^{2}-b \,x^{\nu } = 0 \]

[[_Riccati, _special]]

1.688

10039

\[ {}y^{\prime }+a y^{2}-b \,x^{2 \nu }-c \,x^{\nu -1} = 0 \]

[_Riccati]

3.313

10040

\[ {}y^{\prime }-\left (A y-a \right ) \left (B y-b \right ) = 0 \]

[_quadrature]

5.649

10041

\[ {}y^{\prime }+a y \left (y-x \right )-1 = 0 \]

[_Riccati]

1.415

10042

\[ {}y^{\prime }+x y^{2}-x^{3} y-2 x = 0 \]

[_Riccati]

1.760

10043

\[ {}y^{\prime }-x y^{2}-3 x y = 0 \]

[_separable]

2.373

10044

\[ {}y^{\prime }+x^{-a -1} y^{2}-x^{a} = 0 \]

[_Riccati]

2.115

10045

\[ {}y^{\prime }-a \,x^{n} \left (1+y^{2}\right ) = 0 \]

[_separable]

1.782

10046

\[ {}y^{\prime }+y^{2} \sin \left (x \right )-\frac {2 \sin \left (x \right )}{\cos \left (x \right )^{2}} = 0 \]

[_Riccati]

4.450

10047

\[ {}y^{\prime }-\frac {y^{2} f^{\prime }\left (x \right )}{g \left (x \right )}+\frac {g^{\prime }\left (x \right )}{f \left (x \right )} = 0 \]

[_Riccati]

106.037

10048

\[ {}y^{\prime }+f \left (x \right ) y^{2}+g \left (x \right ) y = 0 \]

[_Bernoulli]

1.296

10049

\[ {}y^{\prime }+f \left (x \right ) \left (y^{2}+2 a y+b \right ) = 0 \]

[_separable]

2.785

10050

\[ {}y^{\prime }+y^{3}+a x y^{2} = 0 \]

[_Abel]

0.883

10051

\[ {}y^{\prime }-y^{3}-a \,{\mathrm e}^{x} y^{2} = 0 \]

[_Abel]

1.422

10052

\[ {}y^{\prime }-a y^{3}-\frac {b}{x^{{3}/{2}}} = 0 \]

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

4.852

10053

\[ {}y^{\prime }-\operatorname {a3} y^{3}-\operatorname {a2} y^{2}-\operatorname {a1} y-\operatorname {a0} = 0 \]

[_quadrature]

73.516

10054

\[ {}y^{\prime }+3 a y^{3}+6 a x y^{2} = 0 \]

[_Abel]

0.885

10055

\[ {}y^{\prime }+a x y^{3}+b y^{2} = 0 \]

[[_homogeneous, ‘class G‘], _Abel]

2.385

10056

\[ {}y^{\prime }-x \left (x +2\right ) y^{3}-\left (x +3\right ) y^{2} = 0 \]

[_Abel]

1.431

10057

\[ {}y^{\prime }+\left (4 a^{2} x +3 a \,x^{2}+b \right ) y^{3}+3 x y^{2} = 0 \]

[_Abel]

2.093

10058

\[ {}y^{\prime }+2 a \,x^{3} y^{3}+2 x y = 0 \]

[_Bernoulli]

1.343

10059

\[ {}y^{\prime }+2 \left (a^{2} x^{3}-b^{2} x \right ) y^{3}+3 b y^{2} = 0 \]

[_Abel]

1.723

10060

\[ {}y^{\prime }-x^{a} y^{3}+3 y^{2}-x^{-a} y-x^{-2 a}+a \,x^{-a -1} = 0 \]

[_Abel]

3.279

10061

\[ {}y^{\prime }-a \left (x^{n}-x \right ) y^{3}-y^{2} = 0 \]

[_Abel]

2.159

10062

\[ {}y^{\prime }-\left (a \,x^{n}+b x \right ) y^{3}-c y^{2} = 0 \]

[_Abel]

2.297

10063

\[ {}y^{\prime }-f_{3} \left (x \right ) y^{3}-f_{2} \left (x \right ) y^{2}-f_{1} \left (x \right ) y-f_{0} \left (x \right ) = 0 \]

[_Abel]

5.206

10064

\[ {}y^{\prime }-\left (y-f \left (x \right )\right ) \left (y-g \left (x \right )\right ) \left (y-\frac {a f \left (x \right )+b g \left (x \right )}{a +b}\right ) h \left (x \right )-\frac {f^{\prime }\left (x \right ) \left (y-g \left (x \right )\right )}{f \left (x \right )-g \left (x \right )}-\frac {g^{\prime }\left (x \right ) \left (y-f \left (x \right )\right )}{g \left (x \right )-f \left (x \right )} = 0 \]

[_Abel]

109.718

10065

\[ {}y^{\prime }-a y^{n}-b \,x^{\frac {n}{1-n}} = 0 \]

[[_homogeneous, ‘class G‘], _Chini]

2.173

10066

\[ {}y^{\prime }-f \left (x \right )^{1-n} g^{\prime }\left (x \right ) y^{n} \left (a g \left (x \right )+b \right )^{-n}-\frac {f^{\prime }\left (x \right ) y}{f \left (x \right )}-f \left (x \right ) g^{\prime }\left (x \right ) = 0 \]

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

631.889

10067

\[ {}y^{\prime }-a^{n} f \left (x \right )^{1-n} g^{\prime }\left (x \right ) y^{n}-\frac {f^{\prime }\left (x \right ) y}{f \left (x \right )}-f \left (x \right ) g^{\prime }\left (x \right ) = 0 \]

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

226.062

10068

\[ {}y^{\prime }-f \left (x \right ) y^{n}-g \left (x \right ) y-h \left (x \right ) = 0 \]

[_Chini]

3.170

10069

\[ {}y^{\prime }-f \left (x \right ) y^{a}-g \left (x \right ) y^{b} = 0 \]

[NONE]

1.977

10070

\[ {}y^{\prime }-\sqrt {{| y|}} = 0 \]

[_quadrature]

2.558

10071

\[ {}y^{\prime }-a \sqrt {y}-b x = 0 \]

[[_homogeneous, ‘class G‘], _Chini]

4.349

10072

\[ {}y^{\prime }-a \sqrt {1+y^{2}}-b = 0 \]

[_quadrature]

72.576

10073

\[ {}y^{\prime }-\frac {\sqrt {y^{2}-1}}{\sqrt {x^{2}-1}} = 0 \]

[_separable]

14.898

10074

\[ {}y^{\prime }-\frac {\sqrt {x^{2}-1}}{\sqrt {y^{2}-1}} = 0 \]

[_separable]

1.915

10075

\[ {}y^{\prime }-\frac {y-x^{2} \sqrt {x^{2}-y^{2}}}{x y \sqrt {x^{2}-y^{2}}+x} = 0 \]

[NONE]

52.827

10076

\[ {}y^{\prime }-\frac {1+y^{2}}{{| y+\sqrt {y+1}|} \left (x +1\right )^{{3}/{2}}} = 0 \]

[_separable]

105.270

10077

\[ {}y^{\prime }-\sqrt {\frac {a y^{2}+b y+c}{a \,x^{2}+b x +c}} = 0 \]

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

109.049

10078

\[ {}y^{\prime }-\sqrt {\frac {y^{3}+1}{x^{3}+1}} = 0 \]

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

4.140

10079

\[ {}y^{\prime }-\frac {\sqrt {{| y \left (y-1\right ) \left (-1+a y\right )|}}}{\sqrt {{| x \left (-1+x \right ) \left (a x -1\right )|}}} = 0 \]

[_separable]

37.131

10080

\[ {}y^{\prime }-\frac {\sqrt {1-y^{4}}}{\sqrt {-x^{4}+1}} = 0 \]

[_separable]

3.880

10081

\[ {}y^{\prime }-\sqrt {\frac {a y^{4}+b y^{2}+1}{a \,x^{4}+b \,x^{2}+1}} = 0 \]

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

23.269

10082

\[ {}y^{\prime }-\sqrt {\left (b_{4} y^{4}+b_{3} y^{3}+b_{2} y^{2}+b_{1} y+b_{0} \right ) \left (a_{4} x^{4}+a_{3} x^{3}+a_{2} x^{2}+a_{1} x +a_{0} \right )} = 0 \]

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

12.842

10083

\[ {}y^{\prime }-\sqrt {\frac {a_{4} x^{4}+a_{3} x^{3}+a_{2} x^{2}+a_{1} x +a_{0}}{b_{4} y^{4}+b_{3} y^{3}+b_{2} y^{2}+b_{1} y+b_{0}}} = 0 \]

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

7.943

10084

\[ {}y^{\prime }-\sqrt {\frac {b_{4} y^{4}+b_{3} y^{3}+b_{2} y^{2}+b_{1} y+b_{0}}{a_{4} x^{4}+a_{3} x^{3}+a_{2} x^{2}+a_{1} x +a_{0}}} = 0 \]

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

7.105

10085

\[ {}y^{\prime }-\operatorname {R1} \left (x , \sqrt {a_{4} x^{4}+a_{3} x^{3}+a_{2} x^{2}+a_{1} x +a_{0}}\right ) \operatorname {R2} \left (y, \sqrt {b_{4} y^{4}+b_{3} y^{3}+b_{2} y^{2}+b_{1} y+b_{0}}\right ) = 0 \]

[_separable]

1.958

10086

\[ {}y^{\prime }-\left (\frac {a_{3} x^{3}+a_{2} x^{2}+a_{1} x +a_{0}}{a_{3} y^{3}+a_{2} y^{2}+a_{1} y+a_{0}}\right )^{{2}/{3}} = 0 \]

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

3.468

10087

\[ {}y^{\prime }-f \left (x \right ) \left (y-g \left (x \right )\right ) \sqrt {\left (y-a \right ) \left (y-b \right )} = 0 \]

[‘y=_G(x,y’)‘]

5.446

10088

\[ {}y^{\prime }-{\mathrm e}^{x -y}+{\mathrm e}^{x} = 0 \]

[_separable]

1.730

10089

\[ {}y^{\prime }-a \cos \left (y\right )+b = 0 \]

[_quadrature]

33.276

10090

\[ {}y^{\prime }-\cos \left (b x +a y\right ) = 0 \]

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

52.088

10091

\[ {}y^{\prime }+a \sin \left (\alpha y+\beta x \right )+b = 0 \]

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

0.960

10092

\[ {}y^{\prime }+f \left (x \right ) \cos \left (a y\right )+g \left (x \right ) \sin \left (a y\right )+h \left (x \right ) = 0 \]

[‘y=_G(x,y’)‘]

6.322

10093

\[ {}y^{\prime }+f \left (x \right ) \sin \left (y\right )+\left (1-f^{\prime }\left (x \right )\right ) \cos \left (y\right )-f^{\prime }\left (x \right )-1 = 0 \]

[‘y=_G(x,y’)‘]

3.536

10094

\[ {}y^{\prime }+2 \tan \left (y\right ) \tan \left (x \right )-1 = 0 \]

[‘y=_G(x,y’)‘]

4.275

10095

\[ {}y^{\prime }-a \left (1+\tan \left (y\right )^{2}\right )+\tan \left (y\right ) \tan \left (x \right ) = 0 \]

[‘y=_G(x,y’)‘]

6.905

10096

\[ {}y^{\prime }-\tan \left (x y\right ) = 0 \]

[‘y=_G(x,y’)‘]

1.521

10097

\[ {}y^{\prime }-f \left (a x +b y\right ) = 0 \]

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

1.091

10098

\[ {}y^{\prime }-x^{a -1} y^{-b +1} f \left (\frac {x^{a}}{a}+\frac {y^{b}}{b}\right ) = 0 \]

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

3.897

10099

\[ {}y^{\prime }-\frac {y-x f \left (x^{2}+a y^{2}\right )}{x +a y f \left (x^{2}+a y^{2}\right )} = 0 \]

[[_1st_order, _with_linear_symmetries]]

1.597

10100

\[ {}2 y^{\prime }-3 y^{2}-4 a y-b -c \,{\mathrm e}^{-2 a x} = 0 \]

[_Riccati]

2.407