2.2.42 Problems 4101 to 4200

Table 2.101: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

4101

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

[_separable]

4.306

4102

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

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

6.316

4103

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

[_linear]

3.945

4104

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

[_separable]

3.531

4105

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

[_quadrature]

0.895

4106

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

[[_linear, ‘class A‘]]

2.981

4107

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

[_quadrature]

0.667

4108

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

[_linear]

3.099

4109

\begin{align*} 2 \sin \left (3 x \right ) \sin \left (2 y\right ) y^{\prime }-3 \cos \left (3 x \right ) \cos \left (2 y\right )&=0 \\ y \left (\frac {\pi }{12}\right ) &= \frac {\pi }{8} \\ \end{align*}

[_separable]

7.473

4110

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

[_separable]

4.901

4111

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

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

52.214

4112

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

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

45.636

4113

\begin{align*} 3 y-7 x +7+\left (7 y-3 x +3\right ) y^{\prime }&=0 \\ y \left (0\right ) &= 0 \\ \end{align*}

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

75.641

4114

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

[_quadrature]

0.349

4115

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

[_linear]

4.135

4116

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

[_exact, _rational]

5.453

4117

\begin{align*} y^{\prime \prime }+8 y^{\prime }+15 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.378

4118

\begin{align*} y^{\prime \prime }+2 y^{\prime }-15 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.408

4119

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.543

4120

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.513

4121

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

[[_2nd_order, _missing_x]]

0.398

4122

\begin{align*} y^{\prime \prime }-4 y^{\prime }+13 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.571

4123

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

[[_2nd_order, _missing_x]]

1.994

4124

\begin{align*} y^{\prime \prime }+25 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

2.297

4125

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

[[_2nd_order, _missing_x]]

0.577

4126

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

[[_2nd_order, _quadrature]]

0.978

4127

\begin{align*} y^{\prime \prime }-6 y^{\prime }+5 y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 7 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.582

4128

\begin{align*} y^{\prime \prime }-4 y^{\prime }+3 y&=1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.590

4129

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

[[_2nd_order, _with_linear_symmetries]]

0.608

4130

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.619

4131

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&={\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.687

4132

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

[[_2nd_order, _with_linear_symmetries]]

0.733

4133

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

[[_2nd_order, _with_linear_symmetries]]

0.657

4134

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

[[_2nd_order, _with_linear_symmetries]]

0.691

4135

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.715

4136

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.732

4137

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.142

4138

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

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

1.841

4139

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

[[_2nd_order, _with_linear_symmetries]]

16.851

4140

\begin{align*} y^{\prime \prime }+2 n y^{\prime }+n^{2} y&=A \cos \left (p x \right ) \\ y \left (0\right ) &= 9 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

1.169

4141

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

[[_3rd_order, _missing_x]]

0.069

4142

\begin{align*} y^{\prime \prime \prime }-y^{\prime \prime }-12 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.122

4143

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

[[_3rd_order, _missing_x]]

0.081

4144

\begin{align*} y^{\prime \prime \prime }+2 y^{\prime \prime }-5 y^{\prime }-6 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.076

4145

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

[[_3rd_order, _missing_x]]

0.073

4146

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

[[_3rd_order, _missing_x]]

0.072

4147

\begin{align*} y^{\prime \prime \prime \prime }+5 y^{\prime \prime }+4 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.087

4148

\begin{align*} y^{\prime \prime \prime \prime }-y^{\prime \prime \prime }-9 y^{\prime \prime }-11 y^{\prime }-4 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.087

4149

\begin{align*} y^{\left (6\right )}+9 y^{\prime \prime \prime \prime }+24 y^{\prime \prime }+16 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.115

4150

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

[[_3rd_order, _missing_x]]

0.066

4151

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.567

4152

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

[[_2nd_order, _with_linear_symmetries]]

0.634

4153

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.795

4154

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.984

4155

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.845

4156

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.837

4157

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&={\mathrm e}^{x} \sin \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.833

4158

\begin{align*} y^{\prime \prime \prime }-y^{\prime \prime }-4 y^{\prime }+4 y&=2 x^{2}-4 x -1+2 x^{2} {\mathrm e}^{2 x}+5 x \,{\mathrm e}^{2 x}+{\mathrm e}^{2 x} \\ \end{align*}

[[_3rd_order, _linear, _nonhomogeneous]]

0.632

4159

\begin{align*} y^{\prime \prime \prime \prime }+10 y^{\prime \prime }+9 y&=\cos \left (2 x +3\right ) \\ \end{align*}

[[_high_order, _linear, _nonhomogeneous]]

0.294

4160

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

[[_2nd_order, _missing_x]]

0.542

4161

\begin{align*} y^{\prime \prime }+9 y&=8 \sin \left (x \right ) \\ y \left (\frac {\pi }{2}\right ) &= -1 \\ y^{\prime }\left (\frac {\pi }{2}\right ) &= 1 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

1.023

4162

\begin{align*} 25 y^{\prime \prime }-30 y^{\prime }+9 y&=0 \\ y \left (1\right ) &= 0 \\ y^{\prime }\left (1\right ) &= 2 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.734

4163

\begin{align*} 9 y^{\prime \prime }-6 y^{\prime }+y&=\left (4 x^{2}+24 x +18\right ) {\mathrm e}^{x} \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

1.065

4164

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

[[_3rd_order, _exact, _linear, _homogeneous]]

0.233

4165

\begin{align*} y_{1}^{\prime }&=y_{2} \\ y_{2}^{\prime }&=3 y_{2}-2 y_{1} \\ \end{align*}

system_of_ODEs

0.721

4166

\begin{align*} y_{1}^{\prime }&=y_{1}+y_{2} \\ y_{2}^{\prime }&=3 y_{2}-y_{1} \\ \end{align*}

system_of_ODEs

0.464

4167

\begin{align*} y_{1}^{\prime }&=y_{1}-y_{2} \\ y_{2}^{\prime }&=2 y_{1}+3 y_{2} \\ \end{align*}

system_of_ODEs

0.774

4168

\begin{align*} y_{1}^{\prime }&=4 y_{2} \\ y_{2}^{\prime }&=4 y_{2}-y_{1} \\ \end{align*}

system_of_ODEs

0.483

4169

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

system_of_ODEs

0.695

4170

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

system_of_ODEs

0.480

4171

\begin{align*} y_{1}^{\prime }&=y_{2}-y_{1} \\ y_{2}^{\prime }&=3 y_{1}-4 y_{2} \\ \end{align*}

system_of_ODEs

0.818

4172

\begin{align*} 2 y_{1}^{\prime }&=y_{1}+y_{2} \\ 2 y_{2}^{\prime }&=5 y_{2}-3 y_{1} \\ \end{align*}

With initial conditions

\begin{align*} y_{1} \left (0\right ) &= 3 \\ y_{2} \left (0\right ) &= 7 \\ \end{align*}

system_of_ODEs

0.657

4173

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

With initial conditions

\begin{align*} y_{1} \left (0\right ) &= -1 \\ y_{2} \left (0\right ) &= 1 \\ \end{align*}

system_of_ODEs

0.735

4174

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

system_of_ODEs

0.565

4175

\begin{align*} 2 y_{1}^{\prime }+y_{2}^{\prime }-4 y_{1}-y_{2}&={\mathrm e}^{x} \\ y_{1}^{\prime }+3 y_{1}+y_{2}&=0 \\ \end{align*}

system_of_ODEs

0.987

4176

\begin{align*} y_{1}^{\prime }&=y_{2} \\ y_{2}^{\prime }&=-y_{1}+y_{3} \\ y_{3}^{\prime }&=-y_{2} \\ \end{align*}

system_of_ODEs

1.054

4177

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.710

4178

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.044

4179

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.195

4180

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

Series expansion around \(x=0\).

[_Lienard]

1.024

4181

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.072

4182

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.493

4183

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

Series expansion around \(x=0\).

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

1.175

4184

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.174

4185

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.216

4186

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.841

4187

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

Series expansion around \(x=0\).

[_Jacobi]

1.065

4188

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

Series expansion around \(x=0\).

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

1.141

4189

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

[_separable]

12.827

4190

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

[[_linear, ‘class A‘]]

3.484

4191

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

[_linear]

2.809

4192

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

[_linear]

3.386

4193

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

[_linear]

3.380

4194

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

[_linear]

3.204

4195

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

[_linear]

6.877

4196

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

[_linear]

3.636

4197

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

[_linear]

4.622

4198

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

[_linear]

3.302

4199

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

[_linear]

6.611

4200

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

[_linear]

3.498