2.2.31 Problems 3001 to 3100

Table 2.63: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

3001

\[ {}2 y = \left (x^{2} y^{4}+x \right ) y^{\prime } \]
i.c.

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

3.331

3002

\[ {}1+x y \left (x y^{2}+1\right ) y^{\prime } = 0 \]
i.c.

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

9.889

3003

\[ {}\left (-x^{2}+1\right ) y^{\prime }+x y = x \left (-x^{2}+1\right ) \sqrt {y} \]
i.c.

[_rational, _Bernoulli]

16.240

3004

\[ {}\left (1-x \right ) y^{\prime }-1-y = 0 \]

[_separable]

1.929

3005

\[ {}y^{2}+\left (x y+x^{2}\right ) y^{\prime } = 0 \]

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

6.384

3006

\[ {}2 x +y-\left (x -2 y\right ) y^{\prime } = 0 \]

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

3.640

3007

\[ {}x \ln \left (x \right ) y^{\prime }+y-x = 0 \]

[_linear]

1.032

3008

\[ {}x -2 y+1+\left (y-2\right ) y^{\prime } = 0 \]

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

2.051

3009

\[ {}2 x y-2 x y^{3}+x^{3}+\left (x^{2}+y^{2}-3 x^{2} y^{2}\right ) y^{\prime } = 0 \]

[_exact, _rational]

1.738

3010

\[ {}2 \,{\mathrm e}^{x}-t^{2}+t \,{\mathrm e}^{x} x^{\prime } = 0 \]

[[_1st_order, _with_linear_symmetries]]

1.438

3011

\[ {}6+2 y = x y y^{\prime } \]

[_separable]

2.085

3012

\[ {}x -3 y = \left (3 y-x +2\right ) y^{\prime } \]

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

1.870

3013

\[ {}y \sin \left (x \right )-2 \cos \left (y\right )+\tan \left (x \right )-\left (\cos \left (x \right )-2 x \sin \left (y\right )+\sin \left (y\right )\right ) y^{\prime } = 0 \]

[_exact]

42.583

3014

\[ {}x^{2} y-\left (x^{3}+y^{3}\right ) y^{\prime } = 0 \]

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

9.272

3015

\[ {}y-y^{\prime } x = 2 y^{2}+2 y^{\prime } \]

[_separable]

2.076

3016

\[ {}\tan \left (y\right ) = \left (3 x +4\right ) y^{\prime } \]

[_separable]

2.710

3017

\[ {}y^{\prime }+y \ln \left (y\right ) \tan \left (x \right ) = 2 y \]

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

1.248

3018

\[ {}2 x y+y^{4}+\left (x y^{3}-2 x^{2}\right ) y^{\prime } = 0 \]

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

2.629

3019

\[ {}y+\left (3 x -2 y\right ) y^{\prime } = 0 \]

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

5.268

3020

\[ {}r^{\prime } = r \cot \left (\theta \right ) \]

[_separable]

1.763

3021

\[ {}\left (3 x +4 y\right ) y^{\prime }+y+2 x = 0 \]

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

3.408

3022

\[ {}2 x^{3}-y^{3}-3 x +3 x y^{2} y^{\prime } = 0 \]

[_rational, _Bernoulli]

1.859

3023

\[ {}y^{\prime } x -y-\sqrt {x^{2}+y^{2}} = 0 \]

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

6.507

3024

\[ {}y^{\prime } = \cos \left (y\right ) \cos \left (x \right )^{2} \]

[_separable]

2.253

3025

\[ {}x +y+\left (2 x +3 y-1\right ) y^{\prime } = 0 \]

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

3.801

3026

\[ {}1+{\mathrm e}^{\frac {x}{y}}+{\mathrm e}^{\frac {x}{y}} \left (1-\frac {x}{y}\right ) y^{\prime } = 0 \]

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

4.783

3027

\[ {}y^{\prime }+x +y \cot \left (x \right ) = 0 \]

[_linear]

1.353

3028

\[ {}3 x -6 = x y y^{\prime } \]

[_separable]

1.450

3029

\[ {}x -2 x y+{\mathrm e}^{y}+\left (y-x^{2}+x \,{\mathrm e}^{y}\right ) y^{\prime } = 0 \]

[_exact]

1.757

3030

\[ {}2 y^{\prime } x -y+\frac {x^{2}}{y^{2}} = 0 \]

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

2.836

3031

\[ {}y^{\prime } x +y \left (1+y^{2}\right ) = 0 \]

[_separable]

4.307

3032

\[ {}y \sqrt {x^{2}+y^{2}}+x y = x^{2} y^{\prime } \]

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

16.340

3033

\[ {}3 \,{\mathrm e}^{x} \tan \left (y\right ) = \left (1-{\mathrm e}^{x}\right ) \sec \left (y\right )^{2} y^{\prime } \]

[_separable]

3.174

3034

\[ {}\sec \left (y\right )^{2} y^{\prime } = \tan \left (y\right )+2 x \,{\mathrm e}^{x} \]

[‘y=_G(x,y’)‘]

2.640

3035

\[ {}2 x \tan \left (y\right )+3 y^{2}+x^{2}+\left (x^{2} \sec \left (y\right )^{2}+6 x y-y^{2}\right ) y^{\prime } = 0 \]

[_exact]

49.638

3036

\[ {}y \cos \left (\frac {x}{y}\right )-\left (y+x \cos \left (\frac {x}{y}\right )\right ) y^{\prime } = 0 \]

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

7.735

3037

\[ {}y \left (3 x^{2}+y\right )-x \left (x^{2}-y\right ) y^{\prime } = 0 \]

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

2.872

3038

\[ {}x +\left (2 x +3 y+2\right ) y^{\prime } = 0 \]

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

2.421

3039

\[ {}y^{\prime } x -5 y-x \sqrt {y} = 0 \]

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

3.834

3040

\[ {}x \sqrt {1-y}-\sqrt {-x^{2}+1}\, y^{\prime } = 0 \]
i.c.

[_separable]

2.626

3041

\[ {}x y-y^{2}-x^{2} y^{\prime } = 0 \]
i.c.

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

3.355

3042

\[ {}x \,{\mathrm e}^{-y^{2}}+y y^{\prime } = 0 \]
i.c.

[_separable]

1.991

3043

\[ {}\frac {2 y^{3}-2 x^{2} y^{3}-x +x y^{2} \ln \left (y\right )}{x y^{2}}+\frac {\left (2 y^{3} \ln \left (x \right )-x^{2} y^{3}+2 x +x y^{2}\right ) y^{\prime }}{y^{3}} = 0 \]
i.c.

[_exact]

5.053

3044

\[ {}y^{\prime } x -2 y-2 x^{4} y^{3} = 0 \]
i.c.

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

3.749

3045

\[ {}\left (-2 x^{2}-3 x y\right ) y^{\prime }+y^{2} = 0 \]
i.c.

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

7.508

3046

\[ {}y^{\prime } x = x^{4}+4 y \]
i.c.

[_linear]

1.512

3047

\[ {}y+y^{\prime } x = x^{3} y^{6} \]
i.c.

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

8.471

3048

\[ {}x^{\prime } = x+x^{2} {\mathrm e}^{\theta } \]
i.c.

[[_1st_order, _with_linear_symmetries], _Bernoulli]

1.735

3049

\[ {}x^{2}+y^{2} = 2 x y y^{\prime } \]
i.c.

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

9.663

3050

\[ {}3 x y+\left (3 x^{2}+y^{2}\right ) y^{\prime } = 0 \]
i.c.

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

40.193

3051

\[ {}y^{\prime }+2 y = 3 \,{\mathrm e}^{2 x} \]
i.c.

[[_linear, ‘class A‘]]

1.628

3052

\[ {}4 x y^{2}+\left (x^{2}+1\right ) y^{\prime } = 0 \]
i.c.

[_separable]

2.685

3053

\[ {}x -2 y+3 = \left (x -2 y+1\right ) y^{\prime } \]
i.c.

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

2.258

3054

\[ {}y^{2}+\left (x^{3}-2 x y\right ) y^{\prime } = 0 \]
i.c.

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

4.494

3055

\[ {}2 x y-2 y+1+x \left (x -1\right ) y^{\prime } = 0 \]
i.c.

[_linear]

1.645

3056

\[ {}y^{3}+2 x^{2} y+\left (-3 x^{3}-2 x y^{2}\right ) y^{\prime } = 0 \]
i.c.

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

344.935

3057

\[ {}2 \left (x^{2}+1\right ) y^{\prime } = \left (2 y^{2}-1\right ) x y \]
i.c.

[_separable]

12.452

3058

\[ {}y^{\prime }-y = 0 \]

[_quadrature]

1.340

3059

\[ {}y^{\prime \prime }-4 y = 0 \]

[[_2nd_order, _missing_x]]

2.472

3060

\[ {}y^{\prime \prime }+7 y^{\prime }+12 y = 0 \]

[[_2nd_order, _missing_x]]

1.084

3061

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = 0 \]

[[_2nd_order, _missing_x]]

1.078

3062

\[ {}y^{\prime \prime }-7 y^{\prime }+6 y = 0 \]

[[_2nd_order, _missing_x]]

1.085

3063

\[ {}2 y^{\prime \prime }+3 y^{\prime }-2 y = 0 \]

[[_2nd_order, _missing_x]]

1.105

3064

\[ {}y^{\prime \prime }-2 y^{\prime }-y = 0 \]

[[_2nd_order, _missing_x]]

1.261

3065

\[ {}y^{\prime \prime }-2 y^{\prime }-2 y = 0 \]

[[_2nd_order, _missing_x]]

1.289

3066

\[ {}y^{\prime \prime }-3 y^{\prime }+y = 0 \]

[[_2nd_order, _missing_x]]

1.397

3067

\[ {}2 y^{\prime \prime }+2 y^{\prime }-y = 0 \]

[[_2nd_order, _missing_x]]

1.375

3068

\[ {}2 y^{\prime \prime \prime }-y^{\prime \prime }-2 y^{\prime }+y = 0 \]

[[_3rd_order, _missing_x]]

0.076

3069

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }-4 y^{\prime }+12 y = 0 \]

[[_3rd_order, _missing_x]]

0.073

3070

\[ {}y^{\prime \prime \prime }-4 y^{\prime \prime }+y^{\prime }+6 y = 0 \]

[[_3rd_order, _missing_x]]

0.070

3071

\[ {}y^{\prime \prime \prime \prime }-6 y^{\prime \prime }+8 y = 0 \]

[[_high_order, _missing_x]]

0.118

3072

\[ {}y^{\prime \prime \prime }-7 y^{\prime }+6 y = 0 \]

[[_3rd_order, _missing_x]]

0.073

3073

\[ {}y^{\prime \prime \prime }-6 y^{\prime \prime }+11 y^{\prime }-6 y = 0 \]

[[_3rd_order, _missing_x]]

0.074

3074

\[ {}y^{\prime \prime \prime }-4 y^{\prime \prime }-17 y^{\prime }+60 y = 0 \]

[[_3rd_order, _missing_x]]

0.073

3075

\[ {}y^{\prime \prime \prime }-9 y^{\prime \prime }+23 y^{\prime }-15 y = 0 \]

[[_3rd_order, _missing_x]]

0.071

3076

\[ {}y^{\prime \prime \prime \prime }+y^{\prime \prime \prime }-7 y^{\prime \prime }-y^{\prime }+6 y = 0 \]

[[_high_order, _missing_x]]

0.077

3077

\[ {}2 y^{\prime \prime \prime \prime }-3 y^{\prime \prime \prime }-20 y^{\prime \prime }+27 y^{\prime }+18 y = 0 \]

[[_high_order, _missing_x]]

0.083

3078

\[ {}12 y^{\prime \prime \prime \prime }-4 y^{\prime \prime \prime }-3 y^{\prime \prime }+y^{\prime } = 0 \]

[[_high_order, _missing_x]]

0.081

3079

\[ {}y^{\prime \prime \prime }-4 y^{\prime \prime }+3 y^{\prime } = 0 \]

[[_3rd_order, _missing_x]]

0.069

3080

\[ {}4 y^{\prime \prime \prime }+2 y^{\prime \prime }-4 y^{\prime }+y = 0 \]

[[_3rd_order, _missing_x]]

0.078

3081

\[ {}y^{\prime \prime \prime }-5 y^{\prime \prime }-2 y^{\prime }+24 y = 0 \]

[[_3rd_order, _missing_x]]

0.075

3082

\[ {}y^{\prime \prime \prime \prime }+2 y^{\prime \prime \prime }-7 y^{\prime \prime }-8 y^{\prime }+12 y = 0 \]

[[_high_order, _missing_x]]

0.079

3083

\[ {}y^{\left (5\right )}-3 y^{\prime \prime \prime \prime }-5 y^{\prime \prime \prime }+15 y^{\prime \prime }+4 y^{\prime }-12 y = 0 \]

[[_high_order, _missing_x]]

0.086

3084

\[ {}y^{\left (5\right )}+y^{\prime \prime \prime \prime }-13 y^{\prime \prime \prime }-13 y^{\prime \prime }+36 y^{\prime }+36 y = 0 \]

[[_high_order, _missing_x]]

0.083

3085

\[ {}y^{\left (5\right )}+3 y^{\prime \prime \prime \prime }-15 y^{\prime \prime \prime }-19 y^{\prime \prime }+30 y^{\prime } = 0 \]

[[_high_order, _missing_x]]

0.088

3086

\[ {}y^{\prime \prime \prime \prime }+3 y^{\prime \prime }-4 y = 0 \]

[[_high_order, _missing_x]]

0.118

3087

\[ {}y^{\left (5\right )}+3 y^{\prime \prime \prime }+2 y^{\prime } = 0 \]

[[_high_order, _missing_x]]

0.089

3088

\[ {}y^{\prime \prime }-2 y^{\prime }+y = 0 \]

[[_2nd_order, _missing_x]]

1.184

3089

\[ {}y^{\prime \prime } = 0 \]

[[_2nd_order, _quadrature]]

2.077

3090

\[ {}2 y^{\prime \prime \prime }+y^{\prime \prime }-4 y^{\prime }-3 y = 0 \]

[[_3rd_order, _missing_x]]

0.078

3091

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }+3 y^{\prime }-y = 0 \]

[[_3rd_order, _missing_x]]

0.079

3092

\[ {}y^{\prime \prime \prime \prime } = 0 \]

[[_high_order, _quadrature]]

0.049

3093

\[ {}y^{\prime \prime \prime }+y^{\prime \prime }-y^{\prime }-y = 0 \]

[[_3rd_order, _missing_x]]

0.074

3094

\[ {}4 y^{\prime \prime \prime }-3 y^{\prime }+y = 0 \]

[[_3rd_order, _missing_x]]

0.080

3095

\[ {}4 y^{\left (5\right )}-3 y^{\prime \prime \prime }-y^{\prime \prime } = 0 \]

[[_high_order, _missing_x]]

0.083

3096

\[ {}y^{\prime \prime \prime }-7 y^{\prime \prime }+16 y^{\prime }-12 y = 0 \]

[[_3rd_order, _missing_x]]

0.084

3097

\[ {}4 y^{\prime \prime \prime }-8 y^{\prime \prime }+5 y^{\prime }-y = 0 \]

[[_3rd_order, _missing_x]]

0.074

3098

\[ {}y^{\prime \prime \prime \prime }-y = 0 \]

[[_high_order, _missing_x]]

0.077

3099

\[ {}y^{\prime \prime \prime }-8 y = 0 \]

[[_3rd_order, _missing_x]]

0.079

3100

\[ {}y^{\prime \prime }-2 y^{\prime }+3 y = 0 \]

[[_2nd_order, _missing_x]]

2.260