2.16.10 Problems 901 to 1000

Table 2.36: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

901

\[ {}y^{\prime }+\frac {2 x y}{x^{2}+1} = \frac {{\mathrm e}^{-x^{2}}}{x^{2}+1} \]

exact, linear, first_order_ode_lie_symmetry_lookup

[_linear]

1.169

902

\[ {}y^{\prime }+\frac {y}{x} = \frac {7}{x^{2}}+3 \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.966

903

\[ {}y^{\prime }+\frac {4 y}{-1+x} = \frac {1}{\left (-1+x \right )^{5}}+\frac {\sin \left (x \right )}{\left (-1+x \right )^{4}} \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

4.908

904

\[ {}x y^{\prime }+\left (2 x^{2}+1\right ) y = x^{3} {\mathrm e}^{-x^{2}} \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.223

905

\[ {}x y^{\prime }+2 y = \frac {2}{x^{2}}+1 \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.929

906

\[ {}y^{\prime }+y \tan \left (x \right ) = \cos \left (x \right ) \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.975

907

\[ {}2 y+\left (1+x \right ) y^{\prime } = \frac {\sin \left (x \right )}{1+x} \]

exact, linear, first_order_ode_lie_symmetry_lookup

[_linear]

3.65

908

\[ {}\left (-2+x \right ) \left (-1+x \right ) y^{\prime }-\left (4 x -3\right ) y = \left (-2+x \right )^{3} \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.288

909

\[ {}y^{\prime }+2 \sin \left (x \right ) \cos \left (x \right ) y = {\mathrm e}^{-\sin \left (x \right )^{2}} \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

2.408

910

\[ {}x^{2} y^{\prime }+3 x y = {\mathrm e}^{x} \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.018

911

\[ {}y^{\prime }+7 y = {\mathrm e}^{3 x} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

1.433

912

\[ {}\left (x^{2}+1\right ) y^{\prime }+4 x y = \frac {2}{x^{2}+1} \]

i.c.

exact, linear, differentialType, first_order_ode_lie_symmetry_lookup

[_linear]

1.988

913

\[ {}x y^{\prime }+3 y = \frac {2}{x \left (x^{2}+1\right )} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.601

914

\[ {}y^{\prime }+\cot \left (x \right ) y = \cos \left (x \right ) \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

2.142

915

\[ {}y^{\prime }+\frac {y}{x} = \frac {2}{x^{2}}+1 \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.257

916

\[ {}\left (-1+x \right ) y^{\prime }+3 y = \frac {1}{\left (-1+x \right )^{3}}+\frac {\sin \left (x \right )}{\left (-1+x \right )^{2}} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

4.447

917

\[ {}x y^{\prime }+2 y = 8 x^{2} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.312

918

\[ {}x y^{\prime }-2 y = -x^{2} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.421

919

\[ {}y^{\prime }+2 x y = x \]

i.c.

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.916

920

\[ {}\left (-1+x \right ) y^{\prime }+3 y = \frac {1+\left (-1+x \right ) \sec \left (x \right )^{2}}{\left (-1+x \right )^{3}} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

16.268

921

\[ {}\left (2+x \right ) y^{\prime }+4 y = \frac {2 x^{2}+1}{x \left (2+x \right )^{3}} \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.597

922

\[ {}\left (x^{2}-1\right ) y^{\prime }-2 x y = x \left (x^{2}-1\right ) \]

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.576

923

\[ {}x y^{\prime }-2 y = -1 \]

i.c.

exact, linear, separable, homogeneousTypeMapleC, first_order_ode_lie_symmetry_lookup

[_separable]

2.029

924

\[ {}\sec \left (y\right )^{2} y^{\prime }-3 \tan \left (y\right ) = -1 \]

quadrature

[_quadrature]

1.128

925

\[ {}{\mathrm e}^{y^{2}} \left (2 y y^{\prime }+\frac {2}{x}\right ) = \frac {1}{x^{2}} \]

exact

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

2.338

926

\[ {}\frac {x y^{\prime }}{y}+2 \ln \left (y\right ) = 4 x^{2} \]

exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

4.343

927

\[ {}\frac {y^{\prime }}{\left (y+1\right )^{2}}-\frac {1}{x \left (y+1\right )} = -\frac {3}{x^{2}} \]

riccati, homogeneousTypeMapleC, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

2.29

928

\[ {}y^{\prime } = \frac {3 x^{2}+2 x +1}{-2+y} \]

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

1.806

929

\[ {}\sin \left (x \right ) \sin \left (y\right )+\cos \left (y\right ) y^{\prime } = 0 \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.586

930

\[ {}x y^{\prime }+y^{2}+y = 0 \]

exact, riccati, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.447

931

\[ {}\left (3 y^{3}+3 y \cos \left (y\right )+1\right ) y^{\prime }+\frac {\left (2 x +1\right ) y}{x^{2}+1} = 0 \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

8.067

932

\[ {}x^{2} y y^{\prime } = \left (y^{2}-1\right )^{\frac {3}{2}} \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.878

933

\[ {}y^{\prime } = x^{2} \left (1+y^{2}\right ) \]

exact, riccati, separable, first_order_ode_lie_symmetry_lookup

[_separable]

0.918

934

\[ {}\left (x^{2}+1\right ) y^{\prime }+x y = 0 \]

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

1.148

935

\[ {}y^{\prime } = \left (-1+x \right ) \left (y-1\right ) \left (-2+y\right ) \]

exact, riccati, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.982

936

\[ {}\left (y-1\right )^{2} y^{\prime } = 2 x +3 \]

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

21.325

937

\[ {}y^{\prime } = \frac {x^{2}+3 x +2}{-2+y} \]

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

3.9

938

\[ {}y^{\prime }+x \left (y^{2}+y\right ) = 0 \]

i.c.

exact, riccati, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.972

939

\[ {}\left (3 y^{2}+4 y\right ) y^{\prime }+2 x +\cos \left (x \right ) = 0 \]

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

5.135

940

\[ {}y^{\prime }+\frac {\left (y+1\right ) \left (y-1\right ) \left (-2+y\right )}{1+x} = 0 \]

i.c.

exact, abelFirstKind, separable, first_order_ode_lie_symmetry_lookup

[_separable]

37.897

941

\[ {}y^{\prime }+2 x \left (y+1\right ) = 0 \]

i.c.

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.951

942

\[ {}y^{\prime } = 2 x y \left (1+y^{2}\right ) \]

i.c.

exact, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

10.752

943

\[ {}y^{\prime } \left (x^{2}+2\right ) = 4 x \left (y^{2}+2 y+1\right ) \]

exact, riccati, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.424

944

\[ {}y^{\prime } = -2 x \left (y^{3}-3 y+2\right ) \]

i.c.

exact, abelFirstKind, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.414

945

\[ {}y^{\prime } = \frac {2 x}{2 y+1} \]

i.c.

exact, separable, differentialType, homogeneousTypeMapleC, first_order_ode_lie_symmetry_lookup

[_separable]

4.329

946

\[ {}y^{\prime } = 2 y-y^{2} \]

i.c.

quadrature

[_quadrature]

1.058

947

\[ {}x +y y^{\prime } = 0 \]

i.c.

exact, separable, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

4.77

948

\[ {}y^{\prime }+x^{2} \left (y+1\right ) \left (-2+y\right )^{2} = 0 \]

exact, abelFirstKind, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.463

949

\[ {}\left (1+x \right ) \left (-2+x \right ) y^{\prime }+y = 0 \]

i.c.

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

2.488

950

\[ {}y^{\prime } = \frac {1+y^{2}}{x^{2}+1} \]

exact, riccati, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.064

951

\[ {}y^{\prime } \sqrt {-x^{2}+1}+\sqrt {1-y^{2}} = 0 \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.605

952

\[ {}y^{\prime } = \frac {\cos \left (x \right )}{\sin \left (y\right )} \]

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.337

953

\[ {}y^{\prime } = a y-b y^{2} \]

i.c.

quadrature

[_quadrature]

1.664

954

\[ {}y+y^{\prime } = \frac {2 x \,{\mathrm e}^{-x}}{1+{\mathrm e}^{x} y} \]

exactWithIntegrationFactor

[[_Abel, ‘2nd type‘, ‘class B‘]]

2.789

955

\[ {}x y^{\prime }-2 y = \frac {x^{6}}{y+x^{2}} \]

exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

8.738

956

\[ {}y^{\prime }-y = \frac {\left (1+x \right ) {\mathrm e}^{4 x}}{\left (y+{\mathrm e}^{x}\right )^{2}} \]

exactWithIntegrationFactor

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

3.855

957

\[ {}y^{\prime }-2 y = \frac {x \,{\mathrm e}^{2 x}}{1-y \,{\mathrm e}^{-2 x}} \]

exactWithIntegrationFactor

[[_Abel, ‘2nd type‘, ‘class A‘]]

2.913

958

\[ {}y^{\prime } = \frac {x^{2}+y^{2}}{\sin \left (x \right )} \]

riccati

[_Riccati]

10.874

959

\[ {}y^{\prime } = \frac {y+{\mathrm e}^{x}}{x^{2}+y^{2}} \]

unknown

[‘y=_G(x,y’)‘]

N/A

1.785

960

\[ {}y^{\prime } = \tan \left (x y\right ) \]

unknown

[‘y=_G(x,y’)‘]

N/A

1.138

961

\[ {}y^{\prime } = \frac {x^{2}+y^{2}}{\ln \left (x y\right )} \]

unknown

[‘y=_G(x,y’)‘]

N/A

1.182

962

\[ {}y^{\prime } = \left (x^{2}+y^{2}\right ) y^{\frac {1}{3}} \]

unknown

[‘y=_G(x,y’)‘]

N/A

0.733

963

\[ {}y^{\prime } = 2 x y \]

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

1.059

964

\[ {}y^{\prime } = \ln \left (1+x^{2}+y^{2}\right ) \]

unknown

[‘y=_G(x,y’)‘]

N/A

0.883

965

\[ {}y^{\prime } = \frac {2 x +3 y}{x -4 y} \]

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.502

966

\[ {}y^{\prime } = \sqrt {x^{2}+y^{2}} \]

unknown

[‘y=_G(x,y’)‘]

N/A

0.715

967

\[ {}y^{\prime } = x \left (y^{2}-1\right )^{\frac {2}{3}} \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.925

968

\[ {}y^{\prime } = \left (x^{2}+y^{2}\right )^{2} \]

unknown

[‘y=_G(x,y’)‘]

N/A

0.569

969

\[ {}y^{\prime } = \sqrt {x +y} \]

homogeneousTypeC, first_order_ode_lie_symmetry_lookup

[[_homogeneous, ‘class C‘], _dAlembert]

3.708

970

\[ {}y^{\prime } = \frac {\tan \left (y\right )}{-1+x} \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.345

971

\[ {}y^{\prime } = y^{\frac {2}{5}} \]

i.c.

quadrature

[_quadrature]

0.974

972

\[ {}y^{\prime } = 3 x \left (y-1\right )^{\frac {1}{3}} \]

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.097

973

\[ {}y^{\prime } = 3 x \left (y-1\right )^{\frac {1}{3}} \]

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.101

974

\[ {}y^{\prime } = 3 x \left (y-1\right )^{\frac {1}{3}} \]

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.917

975

\[ {}y^{\prime }-y = x y^{2} \]

riccati, bernoulli, first_order_ode_lie_symmetry_lookup

[_Bernoulli]

0.945

976

\[ {}y^{\prime } = \frac {y+x \,{\mathrm e}^{-\frac {y}{x}}}{x} \]

homogeneousTypeD, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

1.342

977

\[ {}x^{2} y^{\prime } = y^{2}+x y-x^{2} \]

riccati

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

0.225

978

\[ {}x^{2} y^{\prime } = y^{2}+x y-x^{2} \]

i.c.

riccati, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.518

979

\[ {}y+y^{\prime } = y^{2} \]

bernoulli

[_quadrature]

0.643

980

\[ {}7 x y^{\prime }-2 y = -\frac {x^{2}}{y^{6}} \]

bernoulli

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

2.708

981

\[ {}x^{2} y^{\prime }+2 y = 2 \,{\mathrm e}^{\frac {1}{x}} \sqrt {y} \]

bernoulli

[_Bernoulli]

0.326

982

\[ {}\left (x^{2}+1\right ) y^{\prime }+2 x y = \frac {1}{\left (x^{2}+1\right ) y} \]

bernoulli

[_rational, _Bernoulli]

0.718

983

\[ {}y^{\prime }-x y = x^{3} y^{3} \]

bernoulli

[_Bernoulli]

0.669

984

\[ {}y^{\prime }-\frac {\left (1+x \right ) y}{3 x} = y^{4} \]

bernoulli

[_rational, _Bernoulli]

1.426

985

\[ {}y^{\prime }-2 y = x y^{3} \]

i.c.

bernoulli

[_Bernoulli]

0.796

986

\[ {}y^{\prime }-x y = x y^{\frac {3}{2}} \]

i.c.

exact, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

6.904

987

\[ {}x y^{\prime }+y = x^{4} y^{4} \]

i.c.

bernoulli

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

0.791

988

\[ {}y^{\prime }-2 y = 2 \sqrt {y} \]

i.c.

bernoulli

[_quadrature]

1.489

989

\[ {}y^{\prime }-4 y = \frac {48 x}{y^{2}} \]

i.c.

bernoulli

[_rational, _Bernoulli]

0.758

990

\[ {}x^{2} y^{\prime }+2 x y = y^{3} \]

i.c.

bernoulli

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

0.911

991

\[ {}y^{\prime }-y = x \sqrt {y} \]

i.c.

bernoulli

[_Bernoulli]

1.49

992

\[ {}y^{\prime } = \frac {x +y}{x} \]

linear, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.011

993

\[ {}y^{\prime } = \frac {y^{2}+2 x y}{x^{2}} \]

riccati, bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.347

994

\[ {}x y^{3} y^{\prime } = y^{4}+x^{4} \]

bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.851

995

\[ {}y^{\prime } = \frac {y}{x}+\sec \left (\frac {y}{x}\right ) \]

homogeneousTypeD, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

2.759

996

\[ {}x^{2} y^{\prime } = x^{2}+x y+y^{2} \]

riccati, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

1.52

997

\[ {}x y y^{\prime } = x^{2}+2 y^{2} \]

bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.96

998

\[ {}y^{\prime } = \frac {2 y^{2}+x^{2} {\mathrm e}^{-\frac {y^{2}}{x^{2}}}}{2 x y} \]

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class A‘]]

1.977

999

\[ {}y^{\prime } = \frac {x y+y^{2}}{x^{2}} \]

i.c.

riccati, bernoulli, exactByInspection, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

1.893

1000

\[ {}y^{\prime } = \frac {x^{3}+y^{3}}{x y^{2}} \]

i.c.

bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.781