2.2.100 Problems 9901 to 10000

Table 2.213: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

9901

\begin{align*} y^{\prime \prime } x +y^{\prime }-y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.845

9902

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

[[_2nd_order, _with_linear_symmetries]]

1.123

9903

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

[[_2nd_order, _with_linear_symmetries]]

1.214

9904

\begin{align*} 4 x^{2} y^{\prime \prime }+8 x \left (x +1\right ) y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.122

9905

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

[[_2nd_order, _with_linear_symmetries]]

1.122

9906

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.127

9907

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

[[_2nd_order, _with_linear_symmetries]]

1.224

9908

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

[[_2nd_order, _with_linear_symmetries]]

1.290

9909

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

[[_2nd_order, _with_linear_symmetries]]

1.204

9910

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

[_Laguerre]

1.381

9911

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

[[_2nd_order, _with_linear_symmetries]]

1.488

9912

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

[[_2nd_order, _with_linear_symmetries]]

1.525

9913

\begin{align*} x^{2} y^{\prime \prime }+x^{2} y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.231

9914

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.342

9915

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.495

9916

\begin{align*} y^{\prime \prime } x +\left (3 x +4\right ) y^{\prime }+3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.365

9917

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

[[_2nd_order, _with_linear_symmetries]]

1.444

9918

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

[[_2nd_order, _with_linear_symmetries]]

1.405

9919

\begin{align*} x \left (x +3\right ) y^{\prime \prime }-9 y^{\prime }-6 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.386

9920

\begin{align*} x \left (1-2 x \right ) y^{\prime \prime }-2 \left (2+x \right ) y^{\prime }+8 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.490

9921

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

[[_2nd_order, _with_linear_symmetries]]

1.373

9922

\begin{align*} x^{2} \left (4 x -1\right ) y^{\prime \prime }+x \left (5 x +1\right ) y^{\prime }+3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.375

9923

\begin{align*} y^{\prime \prime } x +y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_Emden, _Fowler]]

4.741

9924

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

[[_2nd_order, _with_linear_symmetries]]

14.788

9925

\begin{align*} 2 y^{\prime \prime } x +6 y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_Emden, _Fowler]]

5.210

9926

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

[[_2nd_order, _with_linear_symmetries]]

15.070

9927

\begin{align*} x^{2} y^{\prime \prime }-x \left (6+x \right ) y^{\prime }+10 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

14.875

9928

\begin{align*} y^{\prime \prime } x +\left (2 x +3\right ) y^{\prime }+8 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

15.068

9929

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

[_Jacobi]

15.089

9930

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

[_Jacobi]

15.050

9931

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

[_Bessel]

24.329

9932

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

[_Bessel]

14.598

9933

\begin{align*} x^{2} y^{\prime \prime }-5 y^{\prime } x +\left (8+5 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

14.740

9934

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

[_Laguerre]

15.124

9935

\begin{align*} 9 x^{2} y^{\prime \prime }-15 y^{\prime } x +7 \left (x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

16.290

9936

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

[[_2nd_order, _with_linear_symmetries]]

15.023

9937

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

[[_2nd_order, _with_linear_symmetries]]

1.290

9938

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

[_Jacobi]

1.558

9939

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

[[_2nd_order, _with_linear_symmetries]]

1.161

9940

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

[[_2nd_order, _with_linear_symmetries]]

1.300

9941

\begin{align*} y^{\prime \prime } x +y^{\prime } x +\left (x^{4}+1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

15.434

9942

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

[[_2nd_order, _with_linear_symmetries]]

1.339

9943

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

[[_2nd_order, _with_linear_symmetries]]

1.066

9944

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

[[_2nd_order, _with_linear_symmetries]]

1.466

9945

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

[[_2nd_order, _exact, _linear, _homogeneous]]

15.063

9946

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

[_Laguerre]

15.121

9947

\begin{align*} x^{2} y^{\prime \prime }+2 x^{2} y^{\prime }-2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.223

9948

\begin{align*} 2 \left (x +5\right ) y-x \left (7+2 x \right ) y^{\prime }+2 x^{2} y^{\prime \prime }&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.229

9949

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

[[_2nd_order, _with_linear_symmetries]]

1.126

9950

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-10 y^{\prime } x -18 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[_Gegenbauer]

0.834

9951

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

[[_2nd_order, _with_linear_symmetries]]

1.416

9952

\begin{align*} -8 y+2 y^{\prime } x +y^{\prime \prime }&=0 \\ \end{align*}
Series expansion around \(x=0\).

[_erf]

0.663

9953

\begin{align*} 4 y x -\left (x^{2}+7\right ) y^{\prime }+x \left (-x^{2}+1\right ) y^{\prime \prime }&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.254

9954

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

[[_2nd_order, _with_linear_symmetries]]

1.329

9955

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

[[_2nd_order, _with_linear_symmetries]]

1.256

9956

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

[[_2nd_order, _with_linear_symmetries]]

1.075

9957

\begin{align*} 2 y^{\prime \prime } x +y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

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

1.346

9958

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

[[_2nd_order, _with_linear_symmetries]]

1.018

9959

\begin{align*} 4 x^{2} y^{\prime \prime }-x^{2} y^{\prime }+y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.069

9960

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

[[_2nd_order, _exact, _linear, _homogeneous]]

0.657

9961

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

[[_2nd_order, _with_linear_symmetries]]

1.254

9962

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

[[_2nd_order, _with_linear_symmetries]]

1.131

9963

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

[[_2nd_order, _with_linear_symmetries]]

1.114

9964

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

[[_2nd_order, _with_linear_symmetries]]

1.236

9965

\begin{align*} x \left (-x^{2}+1\right ) y^{\prime \prime }+5 \left (-x^{2}+1\right ) y^{\prime }-4 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.151

9966

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.023

9967

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

[[_Bessel, _modified]]

14.640

9968

\begin{align*} x \left (1-2 x \right ) y^{\prime \prime }-2 \left (2+x \right ) y^{\prime }+18 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.474

9969

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.346

9970

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

[[_2nd_order, _with_linear_symmetries]]

1.028

9971

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

[_separable]

4.773

9972

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

[_separable]

14.396

9973

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

[_linear]

14.619

9974

\begin{align*} t x^{\prime }+2 x&=4 \,{\mathrm e}^{t} \\ \end{align*}

[_linear]

3.688

9975

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

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

32.103

9976

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

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

27.179

9977

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

[_exact]

0.311

9978

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

[_linear]

0.204

9979

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=5 \,{\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

31.498

9980

\begin{align*} y^{\prime \prime }+16 y&=4 \cos \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

2.906

9981

\begin{align*} y^{\prime \prime }-4 y^{\prime }+3 y&=9 x^{2}+4 \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 8 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

3.323

9982

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.685

9983

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

system_of_ODEs

0.617

9984

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

system_of_ODEs

0.589

9985

\begin{align*} x^{\prime }&=2 x-y \\ y^{\prime }&=-x+2 y+4 \,{\mathrm e}^{t} \\ \end{align*}

system_of_ODEs

0.835

9986

\begin{align*} x^{\prime }&=6 x-7 y+10 \\ y^{\prime }&=x-2 y-2 \,{\mathrm e}^{t} \\ \end{align*}

system_of_ODEs

1.111

9987

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

[_separable]

15.200

9988

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

[_separable]

2.944

9989

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

[_separable]

5.396

9990

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

[_separable]

14.233

9991

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

[_quadrature]

0.946

9992

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

[_quadrature]

0.365

9993

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

[_quadrature]

0.498

9994

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

[_quadrature]

0.996

9995

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

[_quadrature]

0.559

9996

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

[_quadrature]

0.415

9997

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

[_linear]

19.623

9998

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

[_separable]

29.467

9999

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

[_separable]

14.858

10000

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

[_separable]

13.636