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

[_rational, _Bernoulli]

10.555

4802

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

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

25.773

4803

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

[_separable]

17.864

4804

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

[_separable]

12.239

4805

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

[_separable]

12.200

4806

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

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

15.394

4807

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

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

44.266

4808

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

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

5.493

4809

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

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

13.348

4810

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

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

51.185

4811

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

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

51.256

4812

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

[‘y=_G(x,y’)‘]

4.631

4813

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

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

8.612

4814

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

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

9.565

4815

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

[_separable]

4.424

4816

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

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

13.345

4817

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

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

3.625

4818

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

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

10.956

4819

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

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

12.571

4820

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

[‘y=_G(x,y’)‘]

53.626

4821

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

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

10.758

4822

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

[_separable]

6.762

4823

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

[[_1st_order, _with_linear_symmetries]]

5.974

4824

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

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

11.857

4825

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

[‘y=_G(x,y’)‘]

5.491

4826

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

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

11.093

4827

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

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

13.059

4828

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

[_separable]

8.101

4829

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

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

14.752

4830

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

[[_homogeneous, ‘class G‘]]

9.219

4831

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

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

19.565

4832

\begin{align*} x y^{\prime }+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)]‘]]

7.566

4833

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

[[_homogeneous, ‘class G‘]]

8.776

4834

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

[_linear]

3.362

4835

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

[_linear]

5.148

4836

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

[_linear]

3.739

4837

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

[_rational, _Bernoulli]

13.807

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]

9.909

4839

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

[_rational, _Bernoulli]

3.876

4840

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

[[_1st_order, _with_linear_symmetries]]

11.050

4841

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

[_quadrature]

0.581

4842

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

[_linear]

3.546

4843

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

[_linear]

3.585

4844

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

[_linear]

5.102

4845

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

[_separable]

5.614

4846

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

[_separable]

5.001

4847

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

[_linear]

6.030

4848

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

[_separable]

7.314

4849

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

[_rational, _Bernoulli]

8.770

4850

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

[_linear]

28.911

4851

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

[_rational, _Riccati]

35.799

4852

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

[_separable]

6.481

4853

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

[_separable]

21.595

4854

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

[_rational, _Bernoulli]

5.276

4855

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

[_separable]

10.751

4856

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

[_separable]

12.902

4857

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

[_linear]

5.914

4858

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

[_separable]

6.704

4859

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

[_linear]

3.184

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]

9.051

4861

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

[_rational, _Riccati]

4.582

4862

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

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

10.257

4863

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

[_Bernoulli]

7.857

4864

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

[_separable]

3.875

4865

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

[_linear]

3.096

4866

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

[_linear]

2.908

4867

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

[_linear]

3.829

4868

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

[_linear]

5.773

4869

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

[_separable]

4.441

4870

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

[_linear]

3.156

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]

3.261

4872

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

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

7.309

4873

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

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

11.255

4874

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

[_separable]

5.750

4875

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

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

10.296

4876

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

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

51.834

4877

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

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

28.460

4878

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

[_rational, _Riccati]

0.747

4879

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

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

8.341

4880

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

[_rational, _Riccati]

4.015

4881

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

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

7.020

4882

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

[_rational, _Riccati]

87.852

4883

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

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

8.078

4884

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

[_rational, _Riccati]

2.968

4885

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

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

5.733

4886

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

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

18.107

4887

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

[_rational, _Abel]

7.342

4888

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

[_rational, _Abel]

8.747

4889

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

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

10.326

4890

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

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

19.783

4891

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

[‘y=_G(x,y’)‘]

23.125

4892

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

[_linear]

2.629

4893

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

[_linear]

2.467

4894

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

[_linear]

2.445

4895

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

[_linear]

9.046

4896

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

[_linear]

2.375

4897

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

[_linear]

2.208

4898

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

[_linear]

9.242

4899

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

[_linear]

9.062

4900

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

[_linear]

2.392