2.2.82 Problems 8101 to 8200

Table 2.181: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

8101

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +12 y&=0\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=3\\ \end {array} \]

Series expansion around \(x=0\).

[_Gegenbauer]

0.611

8102

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }&=\left (-1+x \right ) y\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.585

8103

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x \left (2+x \right ) y^{\prime \prime }+2 \left (x +1\right ) y^{\prime }-2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.106

8104

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.567

8105

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+\left ({\mathrm e}^{x}-1\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.934

8106

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} -y-3 y^{\prime } x +\left (1-x \right ) x y^{\prime \prime }&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

2.249

8107

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime } x -y^{\prime }+x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

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

1.003

8108

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \sin \left (x \right ) y^{\prime \prime }-2 \cos \left (x \right ) y^{\prime }-\sin \left (x \right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.326

8109

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.288

8110

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x \left (2+x \right ) y^{\prime \prime }+\left (x +1\right ) y^{\prime }-4 y&=0 \end {array} \]

Series expansion around \(x=0\).

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

1.470

8111

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +\left (\frac {1}{2}-x \right ) y^{\prime }-y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.195

8112

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}+\frac {1}{4}\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.694

8113

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}+\frac {9}{4}\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.693

8114

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}+\frac {25}{4}\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.928

8115

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+x \right ) y^{\prime \prime }-y^{\prime } x +y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.543

8116

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+y x&=\cos \left (x \right ) \end {array} \]

Series expansion around \(x=0\).

[_linear]

0.721

8117

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+y x&=\frac {1}{x^{3}} \end {array} \]

[_linear]

3.520

8118

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{3} y^{\prime \prime }+y&=\frac {1}{x^{4}} \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _linear, _nonhomogeneous]]

0.065

8119

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x -2 y^{\prime }+y&=\cos \left (x \right ) \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _linear, _nonhomogeneous]]

2.277

8120

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }-\frac {y}{x}&=\cos \left (x \right ) \end {array} \]

Series expansion around \(x=0\).

[_linear]

0.365

8121

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y&=0 \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _missing_x]]

0.337

8122

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.277

8123

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y x&=0 \end {array} \]

Series expansion around \(x=1\).

[[_Emden, _Fowler]]

0.675

8124

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.488

8125

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }-y x&=0 \end {array} \]

Series expansion around \(x=0\).

[_separable]

0.638

8126

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{2}+1\right ) y^{\prime \prime }-y^{\prime } x +p^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

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

0.812

8127

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y-2 y^{\prime } x +\left (x^{2}+1\right ) y^{\prime \prime }&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.498

8128

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.619

8129

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +y&=0 \end {array} \]

Series expansion around \(x=1\).

[[_Emden, _Fowler]]

0.736

8130

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 x^{3} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.523

8131

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y x&=\frac {1}{1-x}\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _linear, _nonhomogeneous]]

0.653

8132

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.707

8133

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime } x +\left (x +1\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.072

8134

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.210

8135

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+\frac {y^{\prime }}{x}-y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.864

8136

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime } x +y^{\prime }-x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.951

8137

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y^{\prime } x -y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.220

8138

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.896

8139

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime }+y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.121

8140

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +x^{3} y^{\prime }+y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.227

8141

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +y^{\prime } x -{\mathrm e}^{x} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

3.602

8142

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+x^{2} y^{\prime }+x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _missing_x]]

0.356

8143

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _missing_x]]

0.614

8144

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{3} y^{\prime \prime }+\left (x +1\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.085

8145

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +x^{5} y^{\prime }+y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.826

8146

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \sin \left (x \right ) y^{\prime \prime }-y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

3.079

8147

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \cos \left (x \right ) y^{\prime \prime }-\sin \left (x \right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.314

8148

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.914

8149

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+\left (x -\frac {3}{4}\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.602

8150

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y^{\prime } x +y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.846

8151

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (1-x \right ) y^{\prime \prime }-4 y^{\prime } x +5 y&=\cos \left (x \right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

8.727

8152

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x y^{\prime \prime \prime }-{y^{\prime }}^{4}+y&=0 \end {array} \]

[NONE]

0.033

8153

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{5} y^{\prime \prime \prime \prime }-t^{3} y^{\prime \prime }+6 y&=0 \end {array} \]

[[_high_order, _with_linear_symmetries]]

0.046

8154

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} u^{\prime \prime }+u^{\prime }+u&=\cos \left (r +u\right ) \end {array} \]

[NONE]

1.314

8155

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }&=\sqrt {1+{y^{\prime }}^{2}} \end {array} \]

[[_2nd_order, _missing_x]]

3.030

8156

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} R^{\prime \prime }&=-\frac {k}{R^{2}} \end {array} \]

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

1.240

8157

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{\prime \prime }-\left (1-\frac {{x^{\prime }}^{2}}{3}\right ) x^{\prime }+x&=0 \end {array} \]

[[_2nd_order, _missing_x]]

53.600

8158

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \sin \left (y^{\prime }\right )&=x +y \end {array} \]

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

2.938

8159

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \sin \left (x^{\prime }\right )+y^{3} x&=\sin \left (y \right ) \end {array} \]

[‘y=_G(x,y’)‘]

45.259

8160

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{2}-1+y^{\prime } x&=0 \end {array} \]

[_separable]

7.086

8161

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime }+y&=0 \end {array} \]

[_quadrature]

2.406

8162

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+20 y&=24 \end {array} \]

[_quadrature]

2.065

8163

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-6 y^{\prime }+13 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.298

8164

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y&=\tan \left (x \right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.916

8165

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (y-x \right ) y^{\prime }&=y-x \end {array} \]

[_quadrature]

6.020

8166

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=25+y^{2} \end {array} \]

[_quadrature]

4.517

8167

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=2 x y^{2} \end {array} \]

[_separable]

10.204

8168

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime }&=y^{3} \cos \left (x \right ) \end {array} \]

[_separable]

12.341

8169

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{\prime }&=\left (x-1\right ) \left (1-2 x\right ) \end {array} \]

[_quadrature]

1.919

8170

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y x +\left (x^{2}-y\right ) y^{\prime }&=0 \end {array} \]

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

16.023

8171

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} p^{\prime }&=p \left (1-p\right ) \end {array} \]

[_quadrature]

2.599

8172

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+4 y x&=8 x^{3} \end {array} \]

[_linear]

5.150

8173

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-4 y^{\prime }+4 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.623

8174

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{3} y^{\prime \prime \prime }+2 x^{2} y^{\prime \prime }-y^{\prime } x +y&=12 x^{2} \end {array} \]

[[_3rd_order, _exact, _linear, _nonhomogeneous]]

0.736

8175

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime } x -3 y x&=1 \end {array} \]

[[_linear, ‘class A‘]]

3.154

8176

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime } x -y&=2 \cos \left (x \right ) x \end {array} \]

[_linear]

5.947

8177

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y x +x^{2} y^{\prime }&=10 \sin \left (x \right ) \end {array} \]

[_linear]

6.408

8178

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+2 y x&=1 \end {array} \]

[_linear]

3.095

8179

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime } x -2 y&=0 \end {array} \]

[_separable]

7.467

8180

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=-\frac {x}{y} \end {array} \]

[_separable]

12.678

8181

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y+y^{\prime }&=0 \end {array} \]

[_quadrature]

2.231

8182

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 5 y^{\prime }&=2 y \end {array} \]

[_quadrature]

2.410

8183

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 6 y-5 y^{\prime }+y^{\prime \prime }&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.186

8184

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime }+7 y^{\prime }-4 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.576

8185

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +2 y^{\prime }&=0 \end {array} \]

[[_2nd_order, _missing_y]]

2.063

8186

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 x^{2} y^{\prime \prime }+y&=0 \end {array} \]

[[_Emden, _Fowler]]

0.290

8187

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-7 y^{\prime } x +15 y&=0 \end {array} \]

[[_Emden, _Fowler]]

2.499

8188

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime \prime }-3 y^{\prime \prime } x +3 y^{\prime }&=0 \end {array} \]

[[_3rd_order, _missing_y]]

0.282

8189

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 3 y^{\prime } x +5 y&=10 \end {array} \]

[_separable]

7.845

8190

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=y^{2}+2 y-3 \end {array} \]

[_quadrature]

2.063

8191

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+y\right ) y^{\prime }&=1 \end {array} \]

[_quadrature]

1.793

8192

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y^{\prime }+6 y&=10 \end {array} \]

[[_2nd_order, _missing_x]]

0.911

8193

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} {y^{\prime }}^{2}&=4 y \end {array} \]

[_quadrature]

8.641

8194

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} {y^{\prime }}^{2}&=9-y^{2} \end {array} \]

[_quadrature]

2.383

8195

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y y^{\prime }+\sqrt {16-y^{2}}&=0 \end {array} \]

[_quadrature]

3.714

8196

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} {y^{\prime }}^{2}-2 y^{\prime }+4 y&=4 x -1 \end {array} \]

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

7.540

8197

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{\prime }&=x+3 y\\ y^{\prime }&=5 x+3 y\\ \end {array} \]

system_of_ODEs

0.947

8198

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{\prime \prime }&=4 y+{\mathrm e}^{t}\\ y^{\prime \prime }&=4 x-{\mathrm e}^{t}\\ \end {array} \]

system_of_ODEs

0.023

8199

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\sqrt {1-y^{2}} \end {array} \]

[_quadrature]

46.819

8200

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+4 y&=5 \sin \left (t \right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.008