2.2.259 Problems 25801 to 25900

Table 2.535: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

25801

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

[_Riccati]

125.425

25802

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

[_quadrature]

5.306

25803

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

[_quadrature]

1.412

25804

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

[_quadrature]

2.145

25805

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

[_quadrature]

0.516

25806

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

[_quadrature]

0.681

25807

\begin{align*} y^{\prime }&=10+3 y-y^{2} \\ \end{align*}

[_quadrature]

1.536

25808

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

[_quadrature]

1.483

25809

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

[_quadrature]

2.319

25810

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

[_quadrature]

2.358

25811

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

[_quadrature]

2.883

25812

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

[_quadrature]

2.188

25813

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

[_quadrature]

1.790

25814

\begin{align*} y^{\prime }&=y^{2}-y-6 \\ y \left (2\right ) &= 2 \\ \end{align*}

[_quadrature]

1.835

25815

\begin{align*} y^{\prime }&=\sin \left (5 x \right ) \\ \end{align*}

[_quadrature]

0.545

25816

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

[_quadrature]

0.512

25817

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

[_quadrature]

0.626

25818

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

[_quadrature]

0.715

25819

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

[_separable]

5.354

25820

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

[_separable]

6.760

25821

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

[_separable]

3.144

25822

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

[_separable]

4.317

25823

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

[_separable]

3.782

25824

\begin{align*} y^{\prime }&=\frac {\left (3+2 y\right )^{2}}{\left (5+4 x \right )^{2}} \\ \end{align*}

[_separable]

9.588

25825

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

[_separable]

3.645

25826

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

[_separable]

7.511

25827

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

[_separable]

5.121

25828

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

[_separable]

5.761

25829

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

[_quadrature]

1.817

25830

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

[_separable]

12.998

25831

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

[_quadrature]

2.092

25832

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

[[_linear, ‘class A‘]]

4.299

25833

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

[_separable]

26.876

25834

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

[_quadrature]

1.400

25835

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

[_separable]

2.933

25836

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

[_separable]

4.078

25837

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

[_separable]

6.638

25838

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

[_separable]

6.944

25839

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

[_separable]

16.468

25840

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

[_separable]

9.771

25841

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

[_separable]

4.842

25842

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

[_separable]

7.259

25843

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

[_separable]

4.515

25844

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

[_separable]

3.897

25845

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

[_exact]

3.977

25846

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

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

19.151

25847

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

[_exact, _rational]

3.021

25848

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

[_separable]

0.508

25849

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

[_exact]

4.228

25850

\begin{align*} \frac {2 x}{y}+5 y^{2}-4 x +\left (3 y^{2}-\frac {x^{2}}{y^{2}}+10 y x \right ) y^{\prime }&=0 \\ \end{align*}

[_exact, _rational]

3.845

25851

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

[_linear]

5.793

25852

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

[_separable]

29.971

25853

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

[_exact, _rational]

3.078

25854

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

[_linear]

2.803

25855

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

[_separable]

4.132

25856

\begin{align*} y+6 x y^{3}-4 y^{4}-\left (2 x +4 x y^{3}\right ) y^{\prime }&=0 \\ \end{align*}

[_rational]

4.096

25857

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

[_linear]

4.024

25858

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

[_linear]

3.540

25859

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

[_rational, _Bernoulli]

3.230

25860

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

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

48.800

25861

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

[[_linear, ‘class A‘]]

1.972

25862

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

[[_linear, ‘class A‘]]

2.634

25863

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

[‘x=_G(y,y’)‘]

44.191

25864

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

[_linear]

3.641

25865

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

[_quadrature]

8.103

25866

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

[_linear]

3.678

25867

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

[[_linear, ‘class A‘]]

1.695

25868

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

[[_linear, ‘class A‘]]

2.501

25869

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

[_linear]

3.924

25870

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

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

8.479

25871

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

[_Bernoulli]

5.474

25872

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

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

10.102

25873

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

9.720

25874

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

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

4.965

25875

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

[_Bernoulli]

12.322

25876

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

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

7.650

25877

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

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

20.485

25878

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

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

16.793

25879

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

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

11.985

25880

\begin{align*} y^{\prime }&=\frac {6 x^{2}-7 y^{2}}{14 y x} \\ \end{align*}

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

14.369

25881

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

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

12.711

25882

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

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

23.276

25883

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

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

13.010

25884

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

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

40.139

25885

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

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

8.617

25886

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

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

75.407

25887

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

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

18.587

25888

\begin{align*} 3 x -2 y+4-\left (2 x +7 y-1\right ) y^{\prime }&=0 \\ \end{align*}

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

19.409

25889

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

[_separable]

5.803

25890

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

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

85.292

25891

\begin{align*} 3 y-7 x +7+\left (7 y-3 x +3\right ) y^{\prime }&=0 \\ \end{align*}

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

78.823

25892

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

[[_linear, ‘class A‘]]

1.940

25893

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

[_linear]

2.420

25894

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

[_rational, _Bernoulli]

7.261

25895

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

[_separable]

5.208

25896

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

[_separable]

0.262

25897

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

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

14.271

25898

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

[_separable]

5.625

25899

\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]

16.996

25900

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

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

7.557