2.2.30 Problems 2901 to 3000

Table 2.73: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

2901

\begin{align*} x +2 y+\left (3 x +6 y+3\right ) y^{\prime }&=0 \\ \end{align*}

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

9.325

2902

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

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

32.954

2903

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

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

47.030

2904

\begin{align*} 6 x -3 y+6+\left (2 x -y+5\right ) y^{\prime }&=0 \\ y \left (-1\right ) &= 1 \\ \end{align*}

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

10.195

2905

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

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

68.180

2906

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

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

10.450

2907

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

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

9.993

2908

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

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

37.704

2909

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

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

144.240

2910

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

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

10.210

2911

\begin{align*} 2 x +y+\left (4 x +2 y+1\right ) y^{\prime }&=0 \\ y \left (-\frac {1}{6}\right ) &= 0 \\ \end{align*}

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

12.140

2912

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

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

120.351

2913

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

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

10.713

2914

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

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

8.813

2915

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

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

23.550

2916

\begin{align*} x \left (6 y x +5\right )+\left (2 x^{3}+3 y\right ) y^{\prime }&=0 \\ \end{align*}

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

3.004

2917

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

[_exact]

4.040

2918

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

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

31.152

2919

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

[_exact]

13.779

2920

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

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

26.538

2921

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

[[_linear, ‘class A‘]]

4.289

2922

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

[_exact]

64.583

2923

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

[_rational]

57.472

2924

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

[_separable]

5.009

2925

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

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

25.943

2926

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

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

8.060

2927

\begin{align*} y^{2} \csc \left (x \right )^{2}+6 y x -2&=\left (2 \cot \left (x \right ) y-3 x^{2}\right ) y^{\prime } \\ \end{align*}

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

15.282

2928

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

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

10.206

2929

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

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

13.211

2930

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

[_exact]

4.156

2931

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

[_exact]

4.738

2932

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

[_exact]

4.833

2933

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

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

28.960

2934

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

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

57.144

2935

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

[_exact]

5.227

2936

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

[_linear]

4.968

2937

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

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

8.161

2938

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

[_separable]

8.508

2939

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

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

9.138

2940

\begin{align*} x y^{3}-1+x^{2} y^{2} y^{\prime }&=0 \\ \end{align*}

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

6.528

2941

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

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

7.693

2942

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

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

7.724

2943

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

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

11.204

2944

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

[‘y=_G(x,y’)‘]

5.246

2945

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

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

11.589

2946

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

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

23.391

2947

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

[_Bernoulli]

7.407

2948

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

[_rational]

2.911

2949

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

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

6.687

2950

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

[[_homogeneous, ‘class D‘], _Bernoulli]

5.101

2951

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

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

7.241

2952

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

[_separable]

5.784

2953

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

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

6.914

2954

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

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

2.947

2955

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

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

84.755

2956

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

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

11.913

2957

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

[_linear]

4.543

2958

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

[_linear]

2.542

2959

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

[_linear]

4.726

2960

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

[[_linear, ‘class A‘]]

3.649

2961

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

[[_linear, ‘class A‘]]

1.715

2962

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

[_linear]

2.437

2963

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

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

29.705

2964

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

[_linear]

4.503

2965

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

[[_1st_order, _with_exponential_symmetries]]

2.636

2966

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

[_linear]

1.872

2967

\begin{align*} y^{\prime } x&=5 y+x +1 \\ \end{align*}

[_linear]

4.936

2968

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

[_linear]

3.638

2969

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

[_linear]

2.566

2970

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

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

6.128

2971

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

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

7.769

2972

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

[_linear]

2.994

2973

\begin{align*} \sin \left (\theta \right ) r^{\prime }+1+r \tan \left (\theta \right )&=\cos \left (\theta \right ) \\ \end{align*}

[_linear]

6.256

2974

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

[_linear]

4.965

2975

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

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

3.657

2976

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

[_linear]

2.473

2977

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

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

3.539

2978

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

[_linear]

2.310

2979

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

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

10.134

2980

\begin{align*} \left (x^{2}-1\right ) y^{\prime }+\left (x^{2}-1\right )^{2}+4 y&=0 \\ y \left (0\right ) &= -6 \\ \end{align*}

[_linear]

3.465

2981

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

[_Bernoulli]

4.619

2982

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

[_Bernoulli]

7.347

2983

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

[‘y=_G(x,y’)‘]

2.892

2984

\begin{align*} \sin \left (\theta \right ) \theta ^{\prime }+\cos \left (\theta \right )-t \,{\mathrm e}^{-t}&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

3.789

2985

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

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

11.974

2986

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

[_Bernoulli]

4.365

2987

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

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

8.652

2988

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

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

6.439

2989

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

[‘y=_G(x,y’)‘]

3.136

2990

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

[_separable]

4.562

2991

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

[_Bernoulli]

6.383

2992

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

[_separable]

4.854

2993

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

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

25.592

2994

\begin{align*} 3 y^{\prime }+\frac {2 y}{x +1}&=\frac {x}{y^{2}} \\ \end{align*}

[_rational, _Bernoulli]

3.440

2995

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

[_separable]

62.038

2996

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

[‘y=_G(x,y’)‘]

2.857

2997

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

[_Bernoulli]

5.082

2998

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

[[_1st_order, _with_linear_symmetries], _Bernoulli]

8.838

2999

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

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

10.288

3000

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

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

7.811