2.16.48 Problems 4701 to 4800

Table 2.112: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

4701

\[ {}x^{4} y^{\prime \prime }+x y^{\prime }+y = 0 \]

second order series method. Irregular singular point

[[_2nd_order, _with_linear_symmetries]]

N/A

0.415

4702

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

0.881

4703

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _exact, _linear, _homogeneous]]

0.914

4704

\[ {}\left (4 x^{3}-14 x^{2}-2 x \right ) y^{\prime \prime }-\left (6 x^{2}-7 x +1\right ) y^{\prime }+\left (6 x -1\right ) y = 0 \]

second order series method. Regular singular point. Difference not integer

[[_2nd_order, _with_linear_symmetries]]

1.116

4705

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

0.833

4706

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

0.793

4707

\[ {}x^{2} \left (1-4 x \right ) y^{\prime \prime }+\left (\left (-n +1\right ) x -\left (6-4 n \right ) x^{2}\right ) y^{\prime }+n \left (-n +1\right ) x y = 0 \]

second order series method. Regular singular point. Difference not integer

[[_2nd_order, _with_linear_symmetries]]

1.455

4708

\[ {}x^{2} y^{\prime \prime }+\left (x^{2}+x \right ) y^{\prime }+\left (x -9\right ) y = 0 \]

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

1.021

4709

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

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

0.938

4710

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

second order series method. Ordinary point, second order series method. Taylor series method

[_Gegenbauer, [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

0.93

4711

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

second order series method. Regular singular point. Repeated root

[[_Emden, _Fowler]]

0.833

4712

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

second order series method. Regular singular point. Repeated root

[[_2nd_order, _with_linear_symmetries]]

0.644

4713

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

second order series method. Regular singular point. Difference is integer

[[_Emden, _Fowler]]

0.99

4714

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

second order series method. Irregular singular point

[[_2nd_order, _with_linear_symmetries]]

N/A

0.423

4715

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

1.419

4716

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

1.274

4717

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

second order series method. Regular singular point. Repeated root

[[_elliptic, _class_I]]

0.84

4718

\[ {}y^{\prime \prime }+\frac {a y}{x^{\frac {3}{2}}} = 0 \]

second order series method. Irregular singular point

[[_Emden, _Fowler]]

N/A

0.148

4719

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

1.307

4720

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

second order series method. Regular singular point. Repeated root

[[_elliptic, _class_II]]

1.324

4721

\[ {}4 x \left (1-x \right ) y^{\prime \prime }-4 y^{\prime }-y = 0 \]

second order series method. Regular singular point. Difference is integer

[_Jacobi]

1.45

4722

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

second order series method. Irregular singular point

[[_2nd_order, _linear, _nonhomogeneous]]

N/A

0.134

4723

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

second order series method. Irregular singular point

[[_2nd_order, _linear, _nonhomogeneous]]

N/A

0.521

4724

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

0.829

4725

\[ {}x \left (1-x \right ) y^{\prime \prime }+\left (\frac {3}{2}-2 x \right ) y^{\prime }-\frac {y}{4} = 0 \]

second order series method. Regular singular point. Difference not integer

[_Jacobi]

0.981

4726

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

1.099

4727

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+\left (1-11 x \right ) y^{\prime }-10 y = 0 \]

second order series method. Regular singular point. Difference not integer

[_Jacobi]

0.976

4728

\[ {}x \left (1-x \right ) y^{\prime \prime }+\frac {\left (1-2 x \right ) y^{\prime }}{3}+\frac {20 y}{9} = 0 \]

second order series method. Regular singular point. Difference not integer

[_Jacobi]

1.019

4729

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+y^{\prime }+4 y = 0 \]

second order series method. Regular singular point. Difference not integer

[[_2nd_order, _exact, _linear, _homogeneous]]

0.936

4730

\[ {}4 y^{\prime \prime }+\frac {3 \left (-x^{2}+2\right ) y}{\left (-x^{2}+1\right )^{2}} = 0 \]

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

0.851

4731

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

riccati, first_order_ode_lie_symmetry_calculated

[_rational, _Riccati]

1.376

4732

\[ {}u^{\prime \prime }-\frac {a^{2} u}{x^{\frac {2}{3}}} = 0 \]

second_order_bessel_ode

[[_Emden, _Fowler]]

0.125

4733

\[ {}u^{\prime \prime }-\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.504

4734

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic, second_order_bessel_ode, second_order_change_of_variable_on_y_method_1

[[_2nd_order, _with_linear_symmetries]]

0.842

4735

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}+a^{2} u = 0 \]

kovacic, second_order_bessel_ode, second_order_change_of_variable_on_y_method_1

[[_2nd_order, _with_linear_symmetries]]

0.53

4736

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.526

4737

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}+a^{2} u = 0 \]

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.727

4738

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

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.542

4739

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

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.81

4740

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }-\left (x^{2}+\frac {1}{4}\right ) y = 0 \]

kovacic, second_order_bessel_ode, second_order_change_of_variable_on_y_method_1

[[_2nd_order, _with_linear_symmetries]]

0.51

4741

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\frac {\left (-9 a^{2}+4 x^{2}\right ) y}{4 a^{2}} = 0 \]

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.871

4742

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {25}{4}\right ) y = 0 \]

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.904

4743

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

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.484

4744

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

second_order_bessel_ode_form_A

[[_2nd_order, _with_linear_symmetries]]

0.094

4745

\[ {}y^{\prime \prime }+\frac {y}{4 x} = 0 \]

second_order_bessel_ode

[[_Emden, _Fowler]]

0.22

4746

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

second_order_bessel_ode

[[_Emden, _Fowler]]

0.249

4747

\[ {}x y^{\prime \prime }+3 y^{\prime }+4 x^{3} y = 0 \]

kovacic, second_order_bessel_ode

[[_Emden, _Fowler]]

0.524

4748

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

quadrature

[_quadrature]

0.124

4749

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

i.c.

separable

[_separable]

0.3

4750

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

i.c.

separable

[_separable]

0.746

4751

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

i.c.

separable

[_separable]

2.048

4752

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

i.c.

separable

[_separable]

0.519

4753

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

i.c.

separable

[_quadrature]

0.375

4754

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

i.c.

separable

[_separable]

1.046

4755

\[ {}y y^{\prime }+x y^{2}-8 x = 0 \]

i.c.

separable

[_separable]

0.517

4756

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

i.c.

separable

[_separable]

0.279

4757

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

i.c.

separable

[_quadrature]

0.387

4758

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

i.c.

separable

[_separable]

0.321

4759

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

i.c.

separable

[_quadrature]

0.264

4760

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

i.c.

separable

[_separable]

2.856

4761

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

linear

[[_linear, ‘class A‘]]

0.201

4762

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

linear

[_linear]

0.173

4763

\[ {}y^{\prime }+2 x y-x \,{\mathrm e}^{-x^{2}} = 0 \]

linear

[_linear]

0.192

4764

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

linear

[_linear]

0.275

4765

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

linear

[_linear]

0.316

4766

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

linear

[_linear]

0.214

4767

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

linear

[_linear]

0.2

4768

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

linear

[_linear]

0.184

4769

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

linear

[_linear]

0.214

4770

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

linear

[_linear]

0.206

4771

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

linear

[_linear]

0.217

4772

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

linear

[_linear]

0.175

4773

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

linear

[[_linear, ‘class A‘]]

0.164

4774

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

linear

[_linear]

0.156

4775

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

bernoulli, first_order_ode_lie_symmetry_lookup

[_Bernoulli]

1.57

4776

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

bernoulli, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

3.696

4777

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

exact, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.345

4778

\[ {}2 x \,{\mathrm e}^{3 y}+{\mathrm e}^{x}+\left (3 x^{2} {\mathrm e}^{3 y}-y^{2}\right ) y^{\prime } = 0 \]

exact

[_exact]

1.407

4779

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

exact, differentialType, homogeneousTypeMapleC, first_order_ode_lie_symmetry_calculated

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

1.817

4780

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

exact

unknown

34.924

4781

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

riccati, bernoulli, exactByInspection, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

1.135

4782

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

first_order_ode_lie_symmetry_calculated

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

2.135

4783

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

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

1.023

4784

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

exactByInspection, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

1.007

4785

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

first_order_ode_lie_symmetry_calculated

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

0.887

4786

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

homogeneousTypeD, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

1.213

4787

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

exact, linear, first_order_ode_lie_symmetry_lookup

[_linear]

0.739

4788

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

riccati, first_order_ode_lie_symmetry_calculated

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

1.128

4789

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

riccati, exactByInspection, homogeneousTypeD2

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

1.372

4790

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

riccati, first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Riccati]

0.921

4791

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.303

4792

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.319

4793

\[ {}y^{\prime \prime }+9 y^{\prime } = 0 \]

kovacic, exact linear second order ode, second_order_integrable_as_is, second_order_ode_missing_y, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.721

4794

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.316

4795

\[ {}y^{\prime \prime }-2 y^{\prime }+6 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.353

4796

\[ {}y^{\prime \prime }+16 y = 0 \]

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

0.668

4797

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.285

4798

\[ {}y^{\prime \prime }+5 y^{\prime } = 0 \]

kovacic, exact linear second order ode, second_order_integrable_as_is, second_order_ode_missing_y, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.713

4799

\[ {}y^{\prime \prime }-4 y^{\prime }+13 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.332

4800

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.287