2.2.50 Problems 4901 to 5000

Table 2.113: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

4901

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

[_linear]

1.364

4902

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

[_separable]

1.622

4903

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

[_linear]

1.328

4904

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

[_linear]

1.329

4905

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

[_linear]

5.998

4906

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

[_linear]

5.866

4907

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

[_separable]

1.605

4908

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

[_linear]

1.327

4909

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

[_linear]

3.263

4910

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

[_linear]

3.733

4911

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

[_linear]

1.834

4912

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

[_linear]

1.417

4913

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

[_separable]

2.392

4914

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

[_separable]

3.310

4915

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

[_separable]

2.338

4916

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

[_separable]

3.707

4917

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

[_separable]

3.687

4918

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

[_rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], _Riccati]

3.448

4919

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

[_rational, _Riccati]

1.357

4920

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

[_separable]

4.642

4921

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

[_separable]

5.970

4922

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

[_rational, _Abel]

60.670

4923

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

[‘y=_G(x,y’)‘]

11.938

4924

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

[_linear]

1.852

4925

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

[_rational, _Bernoulli]

1.882

4926

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

[_linear]

3.331

4927

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

[_separable]

8.093

4928

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

[_rational, _Bernoulli]

5.830

4929

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

[_rational, _Bernoulli]

5.897

4930

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

[_rational, _Riccati]

5.750

4931

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

[_separable]

7.030

4932

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

[_separable]

6.551

4933

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

[_linear]

1.530

4934

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

[_linear]

1.372

4935

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

[_linear]

1.358

4936

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

[_separable]

1.865

4937

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

[_linear]

3.297

4938

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

[_linear]

3.586

4939

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

[_linear]

1.486

4940

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

[_linear]

3.270

4941

\begin{align*} \left (x -2\right ) \left (x -3\right ) y^{\prime }+x^{2}-8 y+3 y x&=0 \\ \end{align*}

[_linear]

1.760

4942

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

[_separable]

6.996

4943

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

[_separable]

3.385

4944

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

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

16.660

4945

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

[_separable]

5.441

4946

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

[_linear]

4.420

4947

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

[_separable]

4.620

4948

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

[_separable]

10.528

4949

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

[_rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], _Riccati]

11.143

4950

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

[_separable]

2.947

4951

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

[_linear]

2.201

4952

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

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

3.902

4953

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

[[_homogeneous, ‘class D‘], _Riccati]

99.829

4954

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

[_linear]

4.505

4955

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

[_linear]

1.467

4956

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

[_rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], _Riccati]

5.013

4957

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

[_linear]

1.579

4958

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

[_rational, _Riccati]

7.674

4959

\begin{align*} 2 \left (x^{2}+x +1\right ) y^{\prime }&=1+8 x^{2}-\left (2 x +1\right ) y \\ \end{align*}

[_linear]

7.728

4960

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

[_linear]

1.457

4961

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

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

27.248

4962

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

[_separable]

4.829

4963

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

[_separable]

4.665

4964

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

[_separable]

4.068

4965

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

[_separable]

1.984

4966

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

[_rational, _Abel]

16.308

4967

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

[_linear]

3.973

4968

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

[_linear]

1.583

4969

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

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

2.078

4970

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

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

4.371

4971

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

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

5.849

4972

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

[_separable]

2.045

4973

\begin{align*} x^{3} y^{\prime }+20+x^{2} y \left (1-x^{2} y\right )&=0 \\ \end{align*}

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

4.879

4974

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

[_rational, _Riccati]

1.429

4975

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

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

74.351

4976

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

[_linear]

1.523

4977

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

[_linear]

1.625

4978

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

[_linear]

2.000

4979

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

[_linear]

1.538

4980

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

[_separable]

1.884

4981

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

[_separable]

2.131

4982

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

[_linear]

2.111

4983

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

[_linear]

4.720

4984

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

[_linear]

1.503

4985

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

[_linear]

1.588

4986

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

[_rational, _Riccati]

177.820

4987

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

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

5.092

4988

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

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

41.958

4989

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

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

12.137

4990

\begin{align*} 6 x^{3} y^{\prime }&=4 x^{2} y+\left (1-3 x \right ) y^{4} \\ \end{align*}

[_rational, _Bernoulli]

2.124

4991

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

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

3.891

4992

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

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

5.155

4993

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

[_rational, [_Riccati, _special]]

7.272

4994

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

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

3.554

4995

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

[_separable]

3.471

4996

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

[_linear]

1.575

4997

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

[_rational, _Riccati]

2.502

4998

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

[_rational, _Bernoulli]

1.828

4999

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

[_separable]

2.273

5000

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

[_rational, _Riccati]

6.424