2.16.145 Problems 14401 to 14500

Table 2.306: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

14401

\[ {}y \sin \left (\frac {t}{y}\right )-\left (t +t \sin \left (\frac {t}{y}\right )\right ) y^{\prime } = 0 \]

i.c.

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

4.586

14402

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

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

7.595

14403

\[ {}\cos \left (4 x \right )-8 \sin \left (y\right ) y^{\prime } = 0 \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.574

14404

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

exact, riccati, bernoulli, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

2.98

14405

\[ {}y^{\prime } = \frac {{\mathrm e}^{8 y}}{t} \]

exact, separable, first order special form ID 1, first_order_ode_lie_symmetry_lookup

[_separable]

1.113

14406

\[ {}y^{\prime } = \frac {{\mathrm e}^{5 t}}{y^{4}} \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

0.912

14407

\[ {}-\frac {1}{x^{5}}+\frac {1}{x^{3}} = \left (2 y^{4}-6 y^{9}\right ) y^{\prime } \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.445

14408

\[ {}y^{\prime } = \frac {y \,{\mathrm e}^{-2 t}}{\ln \left (y\right )} \]

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.911

14409

\[ {}y^{\prime } = \frac {\left (4-7 x \right ) \left (2 y-3\right )}{\left (-1+x \right ) \left (2 x -5\right )} \]

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

2.785

14410

\[ {}y^{\prime }+3 y = -10 \sin \left (t \right ) \]

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

1.303

14411

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

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.595

14412

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

exact, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

2.921

14413

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

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

0.888

14414

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

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.637

14415

\[ {}r^{\prime } = \frac {r^{2}+t^{2}}{r t} \]

bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.603

14416

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

homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

5.543

14417

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

exact, differentialType

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

1.964

14418

\[ {}t^{2} y+\sin \left (t \right )+\left (\frac {t^{3}}{3}-\cos \left (y\right )\right ) y^{\prime } = 0 \]

exact

[_exact]

9.555

14419

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

exact

[_exact]

4.931

14420

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

exact

[_exact, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

1.882

14421

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

quadrature

[_quadrature]

0.445

14422

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

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.487

14423

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

exact, linear, differentialType, first_order_ode_lie_symmetry_lookup

[_linear]

1.267

14424

\[ {}t r^{\prime }+r = t \cos \left (t \right ) \]

exact, linear, first_order_ode_lie_symmetry_lookup

[_linear]

1.18

14425

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

bernoulli, first_order_ode_lie_symmetry_lookup

[_Bernoulli]

1.333

14426

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

bernoulli, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_1st_order, _with_linear_symmetries], _Bernoulli]

1.687

14427

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

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

2.53

14428

\[ {}y-t y^{\prime } = 2 y^{2} \ln \left (t \right ) \]

riccati, bernoulli, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.624

14429

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

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.726

14430

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

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.48

14431

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

i.c.

exact, differentialType, homogeneousTypeMapleC, first_order_ode_lie_symmetry_calculated

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

7.896

14432

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

i.c.

exact, first_order_ode_lie_symmetry_calculated

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

9.635

14433

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

i.c.

exact

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

2.181

14434

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

i.c.

exact

[_exact]

11.48

14435

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

i.c.

exact

[_exact, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

2.804

14436

\[ {}\frac {y}{t}+\ln \left (y\right )+\left (\frac {t}{y}+\ln \left (t \right )\right ) y^{\prime } = 0 \]

i.c.

exact

[_exact]

3.188

14437

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

i.c.

riccati

[[_Riccati, _special]]

3.14

14438

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

i.c.

first_order_ode_lie_symmetry_calculated

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

7.889

14439

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

i.c.

unknown

[_Chini]

N/A

0.863

14440

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

i.c.

unknown

[‘y=_G(x,y’)‘]

N/A

1.079

14441

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.024

14442

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

2.13

14443

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

i.c.

exact, linear, separable, differentialType, homogeneousTypeD2, homogeneousTypeMapleC, first_order_ode_lie_symmetry_lookup

[_separable]

2.637

14444

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.292

14445

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.381

14446

\[ {}2 t^{2} y^{\prime \prime }-3 t y^{\prime }-3 y = 0 \]

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

1.671

14447

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.941

14448

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.608

14449

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

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

5.305

14450

\[ {}3 t^{2} y^{\prime \prime }-5 t y^{\prime }-3 y = 0 \]

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

2.791

14451

\[ {}t^{2} y^{\prime \prime }+7 t y^{\prime }-7 y = 0 \]

i.c.

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]]

4.243

14452

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.036

14453

\[ {}y^{\prime \prime }+10 y^{\prime }+24 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.322

14454

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.914

14455

\[ {}y^{\prime \prime }+6 y^{\prime }+18 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.708

14456

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

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, 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

[[_2nd_order, _exact, _linear, _homogeneous]]

3.97

14457

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

reduction_of_order

[[_2nd_order, _missing_x]]

0.283

14458

\[ {}y^{\prime \prime }+6 y^{\prime }+8 y = 0 \]

reduction_of_order

[[_2nd_order, _missing_x]]

0.286

14459

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

i.c.

reduction_of_order

[[_2nd_order, _missing_x]]

0.441

14460

\[ {}y^{\prime \prime }+10 y^{\prime }+25 y = 0 \]

reduction_of_order

[[_2nd_order, _missing_x]]

0.287

14461

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

i.c.

reduction_of_order

[[_2nd_order, _missing_x]]

0.563

14462

\[ {}y^{\prime \prime }+49 y = 0 \]

reduction_of_order

[[_2nd_order, _missing_x]]

0.544

14463

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

reduction_of_order

[[_Emden, _Fowler]]

0.521

14464

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

reduction_of_order

[[_Emden, _Fowler]]

0.578

14465

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

reduction_of_order

[[_2nd_order, _with_linear_symmetries]]

0.758

14466

\[ {}t^{2} y^{\prime \prime }+3 t y^{\prime }+y = 0 \]

reduction_of_order

[[_2nd_order, _exact, _linear, _homogeneous]]

0.548

14467

\[ {}a y^{\prime \prime }+b y^{\prime }+c y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.607

14468

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

3.349

14469

\[ {}4 t^{2} y^{\prime \prime }+4 t y^{\prime }+\left (36 t^{2}-1\right ) y = 0 \]

reduction_of_order

[[_2nd_order, _with_linear_symmetries]]

1.005

14470

\[ {}t y^{\prime \prime }+2 y^{\prime }+16 t y = 0 \]

reduction_of_order

[[_2nd_order, _with_linear_symmetries]]

0.822

14471

\[ {}y^{\prime \prime }+b \left (t \right ) y^{\prime }+c \left (t \right ) y = 0 \]

reduction_of_order

[[_2nd_order, _with_linear_symmetries]]

1.766

14472

\[ {}y^{\prime \prime }+b \left (t \right ) y^{\prime }+c \left (t \right ) y = 0 \]

i.c.

reduction_of_order

[[_2nd_order, _with_linear_symmetries]]

N/A

0.922

14473

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

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

[[_2nd_order, _quadrature]]

0.84

14474

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.328

14475

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

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]]

1.27

14476

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.325

14477

\[ {}y^{\prime \prime }+8 y^{\prime }+12 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.325

14478

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.386

14479

\[ {}8 y^{\prime \prime }+6 y^{\prime }+y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.342

14480

\[ {}4 y^{\prime \prime }+9 y = 0 \]

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.474

14481

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.194

14482

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.447

14483

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.267

14484

\[ {}4 y^{\prime \prime }+21 y^{\prime }+5 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.344

14485

\[ {}7 y^{\prime \prime }+4 y^{\prime }-3 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.339

14486

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.391

14487

\[ {}y^{\prime \prime }-6 y^{\prime }+9 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.372

14488

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

i.c.

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]]

1.337

14489

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

i.c.

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]]

1.742

14490

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.582

14491

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.576

14492

\[ {}2 y^{\prime \prime }-7 y^{\prime }-4 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.596

14493

\[ {}y^{\prime \prime }-7 y^{\prime }+10 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.545

14494

\[ {}y^{\prime \prime }+36 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

8.265

14495

\[ {}y^{\prime \prime }+100 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

14.04

14496

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

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.674

14497

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

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.761

14498

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.944

14499

\[ {}y^{\prime \prime }+4 y^{\prime }+20 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.9

14500

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.975