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]

124.773

25802

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

[_quadrature]

10.624

25803

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

[_quadrature]

2.357

25804

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

[_quadrature]

2.636

25805

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

[_quadrature]

0.641

25806

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

[_quadrature]

0.582

25807

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

[_quadrature]

2.773

25808

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

[_quadrature]

2.465

25809

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

[_quadrature]

4.500

25810

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

[_quadrature]

4.324

25811

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

[_quadrature]

5.263

25812

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

[_quadrature]

2.434

25813

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

[_quadrature]

3.006

25814

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

[_quadrature]

2.963

25815

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

[_quadrature]

0.485

25816

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

[_quadrature]

0.473

25817

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

[_quadrature]

0.658

25818

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

[_quadrature]

0.653

25819

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

[_separable]

8.710

25820

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

[_separable]

12.817

25821

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

[_separable]

5.145

25822

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

[_separable]

6.587

25823

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

[_separable]

5.948

25824

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

[_separable]

13.648

25825

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

[_separable]

4.431

25826

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

[_separable]

11.081

25827

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

[_separable]

6.030

25828

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

[_separable]

8.720

25829

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

[_quadrature]

2.586

25830

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

[_separable]

14.230

25831

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

[_quadrature]

2.103

25832

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

[[_linear, ‘class A‘]]

9.753

25833

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

[_separable]

60.362

25834

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

[_quadrature]

1.989

25835

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

[_separable]

3.950

25836

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

[_separable]

5.717

25837

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

[_separable]

11.188

25838

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

[_separable]

12.588

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]

41.665

25840

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

[_separable]

11.868

25841

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

[_separable]

8.343

25842

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

[_separable]

10.964

25843

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

[_separable]

7.633

25844

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

[_separable]

5.549

25845

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

[_exact]

5.181

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‘]]

35.579

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]

4.202

25848

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

[_separable]

0.507

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]

5.111

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]

5.428

25851

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

[_linear]

9.210

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]

30.276

25853

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

[_exact, _rational]

4.191

25854

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

[_linear]

3.566

25855

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

[_separable]

5.894

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]

5.271

25857

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

[_linear]

6.060

25858

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

[_linear]

4.089

25859

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

[_rational, _Bernoulli]

4.497

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‘]]

89.436

25861

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

[[_linear, ‘class A‘]]

2.428

25862

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

[[_linear, ‘class A‘]]

3.188

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]

4.286

25865

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

[_quadrature]

11.199

25866

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

[_linear]

4.422

25867

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

[[_linear, ‘class A‘]]

2.408

25868

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

[[_linear, ‘class A‘]]

3.020

25869

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

[_linear]

5.418

25870

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

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

18.639

25871

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

[_Bernoulli]

7.763

25872

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

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

14.421

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]

15.454

25874

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

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

5.609

25875

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

[_Bernoulli]

25.310

25876

\begin{align*} x y^{\prime }+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‘]]

12.579

25877

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

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

32.523

25878

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

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

28.638

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‘]]

15.349

25880

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

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

24.695

25881

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

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

21.928

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‘]]

46.335

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‘]]

16.125

25884

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

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

77.147

25885

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

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

13.303

25886

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

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

85.551

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]

30.961

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‘]]

33.015

25889

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

[_separable]

11.030

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‘]]

129.173

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‘]]

97.901

25892

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

[[_linear, ‘class A‘]]

2.572

25893

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

[_linear]

2.891

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]

9.567

25895

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

[_separable]

8.152

25896

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

[_separable]

0.243

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‘]]

21.544

25898

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

[_separable]

5.997

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]

18.482

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‘]]

11.650