2.16.116 Problems 11501 to 11600

Table 2.248: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

11501

\[ {}x^{\prime \prime \prime }+x^{\prime } = 1 \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.748

11502

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

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.194

11503

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

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

1.57

11504

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

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_y]]

0.222

11505

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

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.558

11506

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

i.c.

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

4.961

11507

\[ {}x^{\prime }+5 x = \operatorname {Heaviside}\left (t -2\right ) \]

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

1.759

11508

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

0.836

11509

\[ {}x^{\prime \prime }-x^{\prime }-6 x = 0 \]

i.c.

second_order_laplace

[[_2nd_order, _missing_x]]

0.468

11510

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

i.c.

second_order_laplace

[[_2nd_order, _missing_x]]

0.418

11511

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

i.c.

second_order_laplace

[[_2nd_order, _with_linear_symmetries]]

0.635

11512

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

i.c.

second_order_laplace

[[_2nd_order, _missing_x]]

0.295

11513

\[ {}x^{\prime \prime }+\frac {2 x^{\prime }}{5}+2 x = 1-\operatorname {Heaviside}\left (t -5\right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

4.307

11514

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

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

0.835

11515

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

i.c.

second_order_laplace

[[_2nd_order, _missing_x]]

0.495

11516

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

1.455

11517

\[ {}x^{\prime \prime }+4 x = \cos \left (2 t \right ) \operatorname {Heaviside}\left (2 \pi -t \right ) \]

i.c.

second_order_laplace

[[_linear, ‘class A‘]]

1.539

11518

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

1.955

11519

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

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

2.234

11520

\[ {}x^{\prime \prime }+\pi ^{2} x = \pi ^{2} \operatorname {Heaviside}\left (1-t \right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.653

11521

\[ {}x^{\prime \prime }-4 x = 1-\operatorname {Heaviside}\left (-1+t \right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.645

11522

\[ {}x^{\prime \prime }+3 x^{\prime }+2 x = {\mathrm e}^{-4 t} \]

i.c.

second_order_laplace

[[_2nd_order, _with_linear_symmetries]]

0.51

11523

\[ {}x^{\prime }+3 x = \delta \left (-1+t \right )+\operatorname {Heaviside}\left (t -4\right ) \]

i.c.

first_order_laplace

[[_linear, ‘class A‘]]

2.467

11524

\[ {}x^{\prime \prime }-x = \delta \left (t -5\right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.088

11525

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

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.172

11526

\[ {}x^{\prime \prime }+4 x = \delta \left (t -2\right )-\delta \left (t -5\right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

3.515

11527

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

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.002

11528

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

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

1.922

11529

\[ {}x^{\prime \prime }+4 x = \frac {\left (t -5\right ) \operatorname {Heaviside}\left (t -5\right )}{5}+\left (2-\frac {t}{5}\right ) \operatorname {Heaviside}\left (t -10\right ) \]

i.c.

second_order_laplace

[[_2nd_order, _linear, _nonhomogeneous]]

2.441

11530

\[ {}\left [\begin {array}{c} x^{\prime }=-3 y \\ y^{\prime }=2 x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.557

11531

\[ {}\left [\begin {array}{c} x^{\prime }=-2 y \\ y^{\prime }=-4 x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.459

11532

\[ {}\left [\begin {array}{c} x^{\prime }=-3 x \\ y^{\prime }=2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.271

11533

\[ {}\left [\begin {array}{c} x^{\prime }=4 y \\ y^{\prime }=2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.308

11534

\[ {}\left [\begin {array}{c} x^{\prime }=x \\ y^{\prime }=x+2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.297

11535

\[ {}\left [\begin {array}{c} x^{\prime }=x-y \\ y^{\prime }=x+y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.471

11536

\[ {}\left [\begin {array}{c} x^{\prime }=x+2 y \\ y^{\prime }=x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.359

11537

\[ {}\left [\begin {array}{c} x^{\prime }=-x-2 y \\ y^{\prime }=2 x-y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.488

11538

\[ {}\left [\begin {array}{c} x^{\prime }=-2 x-3 y \\ y^{\prime }=-x+4 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.585

11539

\[ {}\left [\begin {array}{c} x^{\prime }=-3 y \\ y^{\prime }=-2 x+y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.393

11540

\[ {}\left [\begin {array}{c} x^{\prime }=-2 x \\ y^{\prime }=x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.296

11541

\[ {}\left [\begin {array}{c} x^{\prime }=-2 x-y \\ y^{\prime }=-4 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.329

11542

\[ {}\left [\begin {array}{c} x^{\prime }=x-2 y \\ y^{\prime }=-2 x+4 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.369

11543

\[ {}\left [\begin {array}{c} x^{\prime }=-6 y \\ y^{\prime }=6 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.3

11544

\[ {}\left [\begin {array}{c} x^{\prime }=2 x+3 y \\ y^{\prime }=-x-14 \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

2.5

11545

\[ {}\left [\begin {array}{c} x^{\prime }=3 y-3 x \\ y^{\prime }=x+2 y-1 \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

1.289

11546

\[ {}\left [\begin {array}{c} x^{\prime }=-x+y \\ y^{\prime }=-3 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.324

11547

\[ {}\left [\begin {array}{c} x^{\prime }=x \\ y^{\prime }=3 x-4 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.327

11548

\[ {}\left [\begin {array}{c} x^{\prime }=-x+y \\ y^{\prime }=x-2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.533

11549

\[ {}\left [\begin {array}{c} x^{\prime }=x+y \\ y^{\prime }=3 y-3 x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.98

11550

\[ {}\left [\begin {array}{c} x^{\prime }=x-2 y \\ y^{\prime }=3 x-4 y \end {array}\right ] \]

i.c.

system of linear ODEs

system of linear ODEs

0.368

11551

\[ {}\left [\begin {array}{c} x^{\prime }=5 x-y \\ y^{\prime }=3 x+y \end {array}\right ] \]

i.c.

system of linear ODEs

system of linear ODEs

0.342

11552

\[ {}\left [\begin {array}{c} x^{\prime }=-3 x+y \\ y^{\prime }=-3 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.208

11553

\[ {}\left [\begin {array}{c} x^{\prime }=x-y \\ y^{\prime }=x+3 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.354

11554

\[ {}\left [\begin {array}{c} x^{\prime }=x+2 y \\ y^{\prime }=3 x+2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.375

11555

\[ {}\left [\begin {array}{c} x^{\prime }=-3 x+4 y \\ y^{\prime }=-3 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.217

11556

\[ {}\left [\begin {array}{c} x^{\prime }=2 x+2 y \\ y^{\prime }=6 x+3 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.396

11557

\[ {}\left [\begin {array}{c} x^{\prime }=-5 x+3 y \\ y^{\prime }=2 x-10 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.393

11558

\[ {}\left [\begin {array}{c} x^{\prime }=2 x \\ y^{\prime }=2 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.276

11559

\[ {}\left [\begin {array}{c} x^{\prime }=3 x-2 y \\ y^{\prime }=4 x-y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.563

11560

\[ {}\left [\begin {array}{c} x^{\prime }=5 x-4 y \\ y^{\prime }=x+y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.378

11561

\[ {}\left [\begin {array}{c} x^{\prime }=9 y \\ y^{\prime }=-x \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.471

11562

\[ {}\left [\begin {array}{c} x^{\prime }=2 x+y \\ y^{\prime }=-x \end {array}\right ] \]

i.c.

system of linear ODEs

system of linear ODEs

0.265

11563

\[ {}\left [\begin {array}{c} x^{\prime }=x-2 y \\ y^{\prime }=-2 x+4 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.347

11564

\[ {}\left [\begin {array}{c} x^{\prime }=3 x-y+1 \\ y^{\prime }=x+y+2 \end {array}\right ] \]

i.c.

system of linear ODEs

system of linear ODEs

0.594

11565

\[ {}\left [\begin {array}{c} x^{\prime }=-5 x+3 y+{\mathrm e}^{-t} \\ y^{\prime }=2 x-10 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.699

11566

\[ {}\left [\begin {array}{c} x^{\prime }=y \\ y^{\prime }=-x+\cos \left (t w \right ) \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

1.711

11567

\[ {}\left [\begin {array}{c} x^{\prime }=3 x+2 y+3 \\ y^{\prime }=7 x+5 y+2 t \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

1.359

11568

\[ {}\left [\begin {array}{c} x^{\prime }=x-3 y \\ y^{\prime }=3 x+7 y \end {array}\right ] \]

system of linear ODEs

system of linear ODEs

0.378

11569

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

linear, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

1.169

11570

\[ {}y^{\prime \prime }-7 y^{\prime }+12 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.261

11571

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _with_linear_symmetries]]

0.426

11572

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

kovacic, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_y_method_1, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _exact, _linear, _homogeneous]]

1.784

11573

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

exact, bernoulli, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

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

2.398

11574

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

bernoulli, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.318

11575

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

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

0.78

11576

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

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.668

11577

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.263

11578

\[ {}y^{\prime \prime \prime }-2 y^{\prime \prime }-4 y^{\prime }+8 y = 0 \]

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.3

11579

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

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.244

11580

\[ {}x^{3} y^{\prime \prime \prime }+2 x^{2} y^{\prime \prime }-10 x y^{\prime }-8 y = 0 \]

higher_order_ODE_non_constant_coefficients_of_type_Euler

[[_3rd_order, _fully, _exact, _linear]]

0.45

11581

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

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

0.884

11582

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _linear, _nonhomogeneous]]

0.732

11583

\[ {}{y^{\prime }}^{2}-4 y = 0 \]

quadrature

[_quadrature]

0.732

11584

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.5

11585

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

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

1.011

11586

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

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

0.994

11587

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.478

11588

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

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

N/A

2.651

11589

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

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

N/A

1.171

11590

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

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

4.199

11591

\[ {}x^{3} y^{\prime \prime \prime }-3 x^{2} y^{\prime \prime }+6 x y^{\prime }-6 y = 0 \]

i.c.

higher_order_ODE_non_constant_coefficients_of_type_Euler

[[_3rd_order, _with_linear_symmetries]]

0.63

11592

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

8.564

11593

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

i.c.

exact, riccati, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.306

11594

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

i.c.

quadrature

[_quadrature]

0.543

11595

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

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

4.587

11596

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

exact

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘], [_Abel, ‘2nd type‘, ‘class B‘]]

1.392

11597

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

exact, differentialType

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], [_Abel, ‘2nd type‘, ‘class A‘]]

1.852

11598

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

unknown

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

N/A

0.874

11599

\[ {}6 x y+2 y^{2}-5+\left (3 x^{2}+4 x y-6\right ) y^{\prime } = 0 \]

exact

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

1.518

11600

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

exact

[_exact, [_Abel, ‘2nd type‘, ‘class A‘]]

12.638