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]

4.366

4102

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

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

5.352

4103

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

[_linear]

3.309

4104

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

[_separable]

2.957

4105

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

[_quadrature]

0.650

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‘]]

2.536

4107

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

[_quadrature]

0.500

4108

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

[_linear]

2.700

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]

5.240

4110

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

[_separable]

3.976

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‘]]

41.845

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‘]]

39.237

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‘]]

81.407

4114

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

[_quadrature]

0.231

4115

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

[_linear]

3.374

4116

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

[_exact, _rational]

4.074

4117

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

[[_2nd_order, _missing_x]]

0.212

4118

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

[[_2nd_order, _missing_x]]

0.204

4119

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

[[_2nd_order, _missing_x]]

0.276

4120

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

[[_2nd_order, _missing_x]]

0.263

4121

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

[[_2nd_order, _missing_x]]

0.198

4122

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

[[_2nd_order, _missing_x]]

0.310

4123

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

[[_2nd_order, _missing_x]]

1.114

4124

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

[[_2nd_order, _missing_x]]

1.551

4125

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

[[_2nd_order, _missing_x]]

0.340

4126

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

[[_2nd_order, _quadrature]]

0.482

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]]

0.362

4128

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

[[_2nd_order, _missing_x]]

0.328

4129

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

[[_2nd_order, _with_linear_symmetries]]

0.370

4130

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.375

4131

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

[[_2nd_order, _with_linear_symmetries]]

0.428

4132

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

[[_2nd_order, _with_linear_symmetries]]

0.459

4133

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

[[_2nd_order, _with_linear_symmetries]]

0.427

4134

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

[[_2nd_order, _with_linear_symmetries]]

0.434

4135

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.468

4136

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.464

4137

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.791

4138

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

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

0.967

4139

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

[[_2nd_order, _with_linear_symmetries]]

14.675

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]]

0.915

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]]

0.102

4143

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

[[_3rd_order, _missing_x]]

0.076

4144

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

[[_3rd_order, _missing_x]]

0.065

4145

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

[[_3rd_order, _missing_x]]

0.072

4146

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

[[_3rd_order, _missing_x]]

0.061

4147

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

[[_high_order, _missing_x]]

0.083

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]]

0.075

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]]

0.099

4150

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

[[_3rd_order, _missing_x]]

0.056

4151

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.381

4152

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

[[_2nd_order, _with_linear_symmetries]]

0.418

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]]

0.501

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]]

0.665

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]]

0.550

4156

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.582

4157

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.534

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]]

0.477

4159

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

[[_high_order, _linear, _nonhomogeneous]]

0.224

4160

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

[[_2nd_order, _missing_x]]

0.345

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]]

0.704

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]]

0.477

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]]

0.786

4164

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

[[_3rd_order, _exact, _linear, _homogeneous]]

0.172

4165

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

system_of_ODEs

0.461

4166

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

system_of_ODEs

0.377

4167

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

system_of_ODEs

0.663

4168

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

system_of_ODEs

0.394

4169

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

system_of_ODEs

0.595

4170

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

system_of_ODEs

0.392

4171

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

system_of_ODEs

0.706

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

0.530

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

0.627

4174

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

system_of_ODEs

0.477

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

0.840

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

0.892

4177

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

[[_Emden, _Fowler]]

0.486

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]]

0.709

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]]

0.886

4180

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

[_Lienard]

0.721

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]]

0.813

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]]

1.061

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)]‘]]

0.899

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]]

0.878

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]]

0.896

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]]

0.606

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]

0.793

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)]‘]]

0.800

4189

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

[_separable]

12.239

4190

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

[[_linear, ‘class A‘]]

2.786

4191

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

[_linear]

2.374

4192

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

[_linear]

2.863

4193

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

[_linear]

2.902

4194

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

[_linear]

2.773

4195

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

[_linear]

5.542

4196

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

[_linear]

2.918

4197

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

[_linear]

3.976

4198

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

[_linear]

2.911

4199

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

[_linear]

5.513

4200

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

[_linear]

2.922