2.2.92 Problems 9101 to 9200

Table 2.201: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

9101

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

[_separable]

0.230

9102

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

[_linear]

0.276

9103

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

[[_linear, ‘class A‘]]

0.275

9104

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

[_linear]

0.195

9105

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

[_separable]

0.180

9106

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

[_linear]

0.233

9107

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

[_linear]

0.283

9108

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

[_linear]

0.378

9109

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

[_linear]

0.338

9110

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

[_separable]

0.287

9111

\begin{align*} y^{\prime }-2 y x&=6 x \,{\mathrm e}^{x^{2}} \\ y \left (1\right ) &= 1 \\ \end{align*}

[_linear]

0.340

9112

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

[_linear]

0.738

9113

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

[_linear]

0.302

9114

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

[[_linear, ‘class A‘]]

0.442

9115

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

[_separable]

0.314

9116

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

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

11.801

9117

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

[_Bernoulli]

37.408

9118

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

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

4.635

9119

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

[_separable]

6.129

9120

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

[_exact, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

4.078

9121

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

[[_1st_order, _with_linear_symmetries]]

5.229

9122

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘], [_Abel, ‘2nd type‘, ‘class C‘]]

11.924

9123

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

[_separable]

7.890

9124

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

[_linear]

8.355

9125

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

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

64.098

9126

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

[‘y=_G(x,y’)‘]

32.289

9127

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

[_exact, _rational]

3.460

9128

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

[_rational, [_Abel, ‘2nd type‘, ‘class B‘]]

25.234

9129

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

[_separable]

0.300

9130

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

[_separable]

0.945

9131

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

[_exact]

28.457

9132

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

[_separable]

0.664

9133

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

[_separable]

4.420

9134

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

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

30.329

9135

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

[_exact, _rational, _Riccati]

9.443

9136

\begin{align*} 2 x y^{4}+\sin \left (y\right )+\left (4 x^{2} y^{3}+x \cos \left (y\right )\right ) y^{\prime }&=0 \\ \end{align*}

[_exact]

5.773

9137

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

[_exact, _rational, _Riccati]

10.314

9138

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

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

9.417

9139

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

[_separable]

6.898

9140

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

[_exact]

32.902

9141

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

[_exact, _Bernoulli]

1.439

9142

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

[_separable]

2.418

9143

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

[_exact, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

6.598

9144

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

9.172

9145

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

[[_homogeneous, ‘class A‘], _exact, _rational, _dAlembert]

2.034

9146

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

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

62.487

9147

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

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

17.155

9148

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

[[_homogeneous, ‘class A‘], _dAlembert]

16.238

9149

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

[[_homogeneous, ‘class A‘], _dAlembert]

24.771

9150

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

[[_homogeneous, ‘class A‘], _dAlembert]

12.493

9151

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

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

32.744

9152

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

[_linear]

10.120

9153

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

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

36.569

9154

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

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

9.839

9155

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

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

15.747

9156

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

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

26.139

9157

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

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

13.318

9158

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

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

16.161

9159

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

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

267.683

9160

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

[_linear]

7.053

9161

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

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

8.514

9162

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

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

11.405

9163

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

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

65.319

9164

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

[[_homogeneous, ‘class A‘], _dAlembert]

11.153

9165

\begin{align*} {\mathrm e}^{\frac {x}{y}}-\frac {y y^{\prime }}{x}&=0 \\ \end{align*}

[[_homogeneous, ‘class A‘], _dAlembert]

14.589

9166

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

[[_homogeneous, ‘class A‘], _dAlembert]

19.891

9167

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

[[_homogeneous, ‘class A‘], _dAlembert]

27.908

9168

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

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

0.581

9169

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

[_rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], [_Abel, ‘2nd type‘, ‘class B‘]]

1.465

9170

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

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

0.526

9171

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

0.559

9172

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

[_separable]

0.615

9173

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

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

0.560

9174

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

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

1.326

9175

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

0.592

9176

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

[‘y=_G(x,y’)‘]

1.810

9177

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

[_rational, [_Abel, ‘2nd type‘, ‘class B‘]]

0.529

9178

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

[_rational, _Bernoulli]

0.457

9179

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

[[_homogeneous, ‘class G‘]]

22.400

9180

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

1.773

9181

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

[NONE]

1.108

9182

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

[[_2nd_order, _missing_x]]

5.518

9183

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

[[_2nd_order, _missing_y]]

0.855

9184

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

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

5.605

9185

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

[[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

1.511

9186

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

[[_2nd_order, _missing_y]]

1.658

9187

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

[[_2nd_order, _missing_y], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_poly_yn]]

0.722

9188

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

[[_2nd_order, _missing_x], [_2nd_order, _with_potential_symmetries], [_2nd_order, _reducible, _mu_xy]]

0.716

9189

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_xy]]

0.956

9190

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

5.462

9191

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

5.695

9192

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

[_linear]

8.796

9193

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

[_linear]

2.395

9194

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

[_separable]

5.766

9195

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

[_separable]

3.674

9196

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

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

23.948

9197

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

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

17.070

9198

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

[_separable]

6.743

9199

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

[_separable]

4.648

9200

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

[_linear]

5.492