2.16.128 Problems 12701 to 12800

Table 2.272: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

12701

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

i.c.

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

0.849

12702

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

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

3.382

12703

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

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.951

12704

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

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

2.293

12705

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

i.c.

quadrature

[_quadrature]

0.273

12706

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

i.c.

quadrature

[_quadrature]

0.278

12707

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

i.c.

quadrature

[_quadrature]

0.289

12708

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

i.c.

quadrature

[_quadrature]

0.335

12709

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

i.c.

quadrature

[_quadrature]

0.255

12710

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

i.c.

quadrature

[_quadrature]

0.28

12711

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

1.566

12712

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

3.958

12713

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

3.991

12714

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

1.318

12715

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

4.206

12716

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.059

12717

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.874

12718

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.662

12719

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.885

12720

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.247

12721

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.645

12722

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.622

12723

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.546

12724

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

i.c.

quadrature

[_quadrature]

2.613

12725

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

i.c.

quadrature

[_quadrature]

0.289

12726

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

i.c.

quadrature

[_quadrature]

0.829

12727

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

i.c.

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

2.643

12728

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

i.c.

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.719

12729

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

i.c.

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

2.141

12730

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

i.c.

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.289

12731

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

i.c.

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

2.948

12732

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

i.c.

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

1.625

12733

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

i.c.

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

3.802

12734

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.947

12735

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

9.96

12736

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

12.649

12737

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.989

12738

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

i.c.

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.59

12739

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

i.c.

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.036

12740

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

i.c.

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.143

12741

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

i.c.

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.897

12742

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

i.c.

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.395

12743

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _with_linear_symmetries]]

2.704

12744

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

i.c.

higher_order_missing_y

[[_3rd_order, _missing_y]]

15.169

12745

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

i.c.

kovacic, second_order_ode_missing_y, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _missing_y]]

1.86

12746

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

i.c.

kovacic, second_order_ode_missing_y, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _missing_y]]

1.83

12747

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

i.c.

second_order_bessel_ode

[[_2nd_order, _linear, _nonhomogeneous]]

18.188

12748

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

i.c.

unknown

[[_2nd_order, _linear, _nonhomogeneous]]

N/A

0.964

12749

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

0.774

12750

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

0.88

12751

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

1.391

12752

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

second_order_ode_missing_x

[[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

1.208

12753

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

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.7

12754

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

i.c.

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.589

12755

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

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

2.388

12756

\[ {}y^{\prime \prime }-4 y = 31 \]

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.849

12757

\[ {}y^{\prime \prime }+9 y = 27 x +18 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _with_linear_symmetries]]

0.924

12758

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

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _with_linear_symmetries]]

2.217

12759

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.296

12760

\[ {}y^{\prime \prime \prime }-4 y^{\prime \prime }+6 y^{\prime }-4 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.373

12761

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

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.372

12762

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

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.874

12763

\[ {}y^{\prime \prime \prime \prime }-4 y^{\prime \prime \prime }+8 y^{\prime \prime }-8 y^{\prime }+4 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.187

12764

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

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.595

12765

\[ {}36 y^{\prime \prime \prime \prime }-12 y^{\prime \prime \prime }-11 y^{\prime \prime }+2 y^{\prime }+y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.45

12766

\[ {}y^{\left (5\right )}-3 y^{\prime \prime \prime \prime }+3 y^{\prime \prime \prime }-3 y^{\prime \prime }+2 y^{\prime } = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.406

12767

\[ {}y^{\left (5\right )}-y^{\prime \prime \prime \prime }+y^{\prime \prime \prime }+35 y^{\prime \prime }+16 y^{\prime }-52 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.63

12768

\[ {}y^{\left (8\right )}+8 y^{\prime \prime \prime \prime }+16 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.238

12769

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.414

12770

\[ {}y^{\prime \prime \prime }+\left (-3-4 i\right ) y^{\prime \prime }+\left (-4+12 i\right ) y^{\prime }+12 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.221

12771

\[ {}y^{\prime \prime \prime \prime }+\left (-3-i\right ) y^{\prime \prime \prime }+\left (4+3 i\right ) y^{\prime \prime } = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.204

12772

\[ {}y^{\prime }-i y = 0 \]

i.c.

quadrature

[_quadrature]

0.472

12773

\[ {}y^{\prime \prime \prime \prime }-6 y^{\prime \prime \prime }+13 y^{\prime \prime }-12 y^{\prime }+4 y = 2 \,{\mathrm e}^{x}-4 \,{\mathrm e}^{2 x} \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _linear, _nonhomogeneous]]

0.326

12774

\[ {}y^{\prime \prime \prime \prime }+4 y^{\prime \prime } = 24 x^{2}-6 x +14+32 \cos \left (2 x \right ) \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_y]]

0.846

12775

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

higher_order_linear_constant_coefficients_ODE

[[_high_order, _linear, _nonhomogeneous]]

0.311

12776

\[ {}y^{\prime \prime \prime \prime }-3 y^{\prime \prime \prime }+3 y^{\prime \prime }-y^{\prime } = 6 x -20-120 x^{2} {\mathrm e}^{x} \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_y]]

0.323

12777

\[ {}y^{\prime \prime \prime }-6 y^{\prime \prime }+21 y^{\prime }-26 y = 36 \,{\mathrm e}^{2 x} \sin \left (3 x \right ) \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _linear, _nonhomogeneous]]

1.947

12778

\[ {}y^{\prime \prime \prime }+y^{\prime \prime }-y^{\prime }-y = \left (2 x^{2}+4 x +8\right ) \cos \left (x \right )+\left (6 x^{2}+8 x +12\right ) \sin \left (x \right ) \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _linear, _nonhomogeneous]]

1.184

12779

\[ {}y^{\left (6\right )}-12 y^{\left (5\right )}+63 y^{\prime \prime \prime \prime }-18 y^{\prime \prime \prime }+315 y^{\prime \prime }-300 y^{\prime }+125 y = {\mathrm e}^{x} \left (48 \cos \left (x \right )+96 \sin \left (x \right )\right ) \]

higher_order_linear_constant_coefficients_ODE

[[_high_order, _linear, _nonhomogeneous]]

66.164

12780

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }-4 y^{\prime }+12 y = 0 \]

i.c.

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.447

12781

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

i.c.

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.349

12782

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

i.c.

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _with_linear_symmetries]]

1.343

12783

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

i.c.

higher_order_linear_constant_coefficients_ODE

[[_high_order, _with_linear_symmetries]]

0.609

12784

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

first_order_laplace

[_quadrature]

0.23

12785

\[ {}y^{\prime \prime }-2 y^{\prime }+5 y = 0 \]

second_order_laplace

[[_2nd_order, _missing_x]]

0.265

12786

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

first_order_laplace

[_quadrature]

0.267

12787

\[ {}y^{\prime \prime }-9 y = 2 \sin \left (3 x \right ) \]

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

0.509

12788

\[ {}y^{\prime \prime }+9 y = 2 \sin \left (3 x \right ) \]

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

0.52

12789

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

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

0.407

12790

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

higher_order_laplace

[[_high_order, _missing_y]]

0.428

12791

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

i.c.

first_order_laplace

[_quadrature]

0.257

12792

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

0.475

12793

\[ {}y^{\prime \prime }-9 y = 2+x \]

i.c.

second_order_laplace

[[_2nd_order, _with_linear_symmetries]]

0.457

12794

\[ {}y^{\prime \prime }+9 y = 2+x \]

i.c.

second_order_laplace

[[_2nd_order, _with_linear_symmetries]]

0.603

12795

\[ {}y^{\prime \prime }-y^{\prime }+6 y = -2 \sin \left (3 x \right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.189

12796

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

i.c.

second_order_laplace

[[_2nd_order, _with_linear_symmetries]]

0.54

12797

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

i.c.

higher_order_laplace

[[_3rd_order, _missing_y]]

0.836

12798

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

i.c.

first_order_laplace

[_quadrature]

0.413

12799

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

0.473

12800

\[ {}y^{\prime \prime }+9 y = 1 \]

i.c.

second_order_laplace

[[_2nd_order, _missing_x]]

0.447