2.2.49 Problems 4801 to 4900

Table 2.115: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

4801

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

[_rational, _Bernoulli]

14.788

4802

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

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

42.584

4803

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

[_separable]

22.216

4804

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

[_separable]

17.252

4805

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

[_separable]

17.293

4806

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

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

24.539

4807

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

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

77.677

4808

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

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

8.467

4809

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

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

17.381

4810

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

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

84.317

4811

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

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

82.416

4812

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

[‘y=_G(x,y’)‘]

5.649

4813

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

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

11.521

4814

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

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

11.585

4815

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

[_separable]

5.521

4816

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

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

14.567

4817

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

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

4.083

4818

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

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

12.949

4819

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

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

12.950

4820

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

[‘y=_G(x,y’)‘]

65.623

4821

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

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

14.167

4822

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

[_separable]

8.861

4823

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

[[_1st_order, _with_linear_symmetries]]

8.498

4824

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

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

16.312

4825

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

[‘y=_G(x,y’)‘]

7.258

4826

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

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

14.897

4827

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

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

17.943

4828

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

[_separable]

11.813

4829

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

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

21.501

4830

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

[[_homogeneous, ‘class G‘]]

13.343

4831

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

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

30.923

4832

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

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

9.754

4833

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

[[_homogeneous, ‘class G‘]]

12.819

4834

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

[_linear]

4.218

4835

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

[_linear]

6.728

4836

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

[_linear]

4.746

4837

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

[_rational, _Bernoulli]

20.444

4838

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

13.823

4839

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

[_rational, _Bernoulli]

5.039

4840

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

[[_1st_order, _with_linear_symmetries]]

13.938

4841

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

[_quadrature]

0.987

4842

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

[_linear]

5.895

4843

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

[_linear]

5.753

4844

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

[_linear]

7.473

4845

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

[_separable]

9.106

4846

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

[_separable]

7.995

4847

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

[_linear]

9.776

4848

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

[_separable]

11.533

4849

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

[_rational, _Bernoulli]

13.484

4850

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

[_linear]

35.504

4851

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

[_rational, _Riccati]

65.672

4852

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

[_separable]

10.605

4853

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

[_separable]

37.198

4854

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

[_rational, _Bernoulli]

8.820

4855

\begin{align*} 2 y^{\prime } x +4 y+a +\sqrt {a^{2}-4 b -4 c y}&=0 \\ \end{align*}

[_separable]

16.602

4856

\begin{align*} 2 y^{\prime } x +4 y+a -\sqrt {a^{2}-4 b -4 c y}&=0 \\ \end{align*}

[_separable]

19.879

4857

\begin{align*} \left (1-2 x \right ) y^{\prime }&=16+32 x -6 y \\ \end{align*}

[_linear]

9.201

4858

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

[_separable]

10.571

4859

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

[_linear]

4.460

4860

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

13.806

4861

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

[_rational, _Riccati]

6.994

4862

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

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

16.038

4863

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

[_Bernoulli]

13.061

4864

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

[_separable]

6.287

4865

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

[_linear]

4.664

4866

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

[_linear]

4.314

4867

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

[_linear]

5.913

4868

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

[_linear]

9.427

4869

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

[_separable]

6.984

4870

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

[_linear]

4.344

4871

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

[_linear]

4.466

4872

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

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

11.471

4873

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

[[_homogeneous, ‘class C‘], _rational, _Riccati]

17.848

4874

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

[_separable]

9.113

4875

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

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

16.942

4876

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

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

79.053

4877

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

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

81.831

4878

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

[_rational, _Riccati]

1.117

4879

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

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

13.174

4880

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

[_rational, _Riccati]

6.020

4881

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

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

11.178

4882

\begin{align*} x^{2} y^{\prime }&=a +b \,x^{n}+c \,x^{2} y^{2} \\ \end{align*}

[_rational, _Riccati]

111.825

4883

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

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

12.025

4884

\begin{align*} x^{2} y^{\prime }&=a +b x y+c \,x^{4} y^{2} \\ \end{align*}

[_rational, _Riccati]

4.369

4885

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

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

8.965

4886

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

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

24.437

4887

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

[_rational, _Abel]

13.001

4888

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

[_rational, _Abel]

14.943

4889

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

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

16.117

4890

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

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

25.489

4891

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

[‘y=_G(x,y’)‘]

34.371

4892

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

[_linear]

3.727

4893

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

[_linear]

3.503

4894

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

[_linear]

3.493

4895

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

[_linear]

14.318

4896

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

[_linear]

3.530

4897

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

[_linear]

3.222

4898

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

[_linear]

15.115

4899

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

[_linear]

15.012

4900

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

[_linear]

3.606