2.16.63 Problems 6201 to 6300

Table 2.142: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

6201

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

exact, first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries], _exact, _rational]

8.179

6202

\[ {}\frac {4 y^{2}-2 x^{2}}{4 x y^{2}-x^{3}}+\frac {\left (8 y^{2}-x^{2}\right ) y^{\prime }}{4 y^{3}-x^{2} y} = 0 \]

exact

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

8.88

6203

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

homogeneous

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

1.757

6204

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

homogeneous

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

0.941

6205

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

homogeneous

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

5.297

6206

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

homogeneous

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

1.29

6207

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

homogeneous

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

0.743

6208

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

homogeneous

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

2.356

6209

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

homogeneous

[_linear]

1.391

6210

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

homogeneous

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

1.622

6211

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

homogeneous

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

0.885

6212

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

homogeneous

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

0.695

6213

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

homogeneousTypeMapleC, first_order_ode_lie_symmetry_calculated

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

3.154

6214

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

first_order_ode_lie_symmetry_calculated

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

1.968

6215

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

homogeneousTypeMapleC, first_order_ode_lie_symmetry_calculated

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

3.46

6216

\[ {}y^{\prime } = \frac {x +y-1}{x +4 y+2} \]

homogeneousTypeMapleC, first_order_ode_lie_symmetry_calculated

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

11.516

6217

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

linear, homogeneousTypeMapleC, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

2.355

6218

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

bernoulli, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

1.75

6219

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

bernoulli, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

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

2.215

6220

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

exactWithIntegrationFactor, first_order_ode_lie_symmetry_calculated

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

2.674

6221

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

homogeneous

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

2.257

6222

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

homogeneous

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

1.097

6223

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

homogeneous

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

4.489

6224

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

homogeneous

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

3.023

6225

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

exact

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

0.444

6226

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

exact

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

0.382

6227

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

exact

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

0.537

6228

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

exact

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

0.559

6229

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

exact

[_separable]

1.457

6230

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

exact

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

0.472

6231

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

exact

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

0.338

6232

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

exact

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

0.443

6233

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

exact

[‘y=_G(x,y’)‘]

0.879

6234

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

exact

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

0.46

6235

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

exact

[_rational, _Bernoulli]

0.455

6236

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

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

24.117

6237

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

second_order_integrable_as_is, second_order_ode_missing_x, exact nonlinear second order ode

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

2.132

6238

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

unknown

[NONE]

N/A

0.144

6239

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.232

6240

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

second_order_ode_missing_y

[[_2nd_order, _missing_y]]

1.188

6241

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

second_order_ode_missing_x

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

7.38

6242

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

second_order_ode_missing_x

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

1.647

6243

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

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

[[_2nd_order, _missing_y]]

2.368

6244

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

i.c.

second_order_integrable_as_is, second_order_ode_missing_y

[[_2nd_order, _missing_y], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_poly_yn]]

65.544

6245

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

i.c.

second_order_ode_missing_x

[[_2nd_order, _missing_x], [_2nd_order, _with_potential_symmetries], [_2nd_order, _reducible, _mu_xy]]

5.231

6246

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

i.c.

second_order_integrable_as_is, second_order_ode_missing_x, exact nonlinear second order ode

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_xy]]

4.645

6247

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

second_order_ode_missing_x, second_order_ode_missing_y

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

3.93

6248

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

second_order_ode_missing_x, second_order_ode_missing_y

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_xy]]

9.789

6249

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

exact, linear, differentialType, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_linear]

3.171

6250

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

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.694

6251

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

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

2.053

6252

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

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

3.589

6253

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

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

2.42

6254

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

exactByInspection, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

3.238

6255

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

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

2.572

6256

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

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

41.194

6257

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

i.c.

linear, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

2.21

6258

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

i.c.

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

23.692

6259

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

i.c.

exact, separable, differentialType, first_order_ode_lie_symmetry_lookup

[_separable]

163.036

6260

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

5.879

6261

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

i.c.

exactByInspection, homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

6.302

6262

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

homogeneousTypeD2, first_order_ode_lie_symmetry_calculated

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

2.646

6263

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

i.c.

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

17.418

6264

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

exact, linear, separable, homogeneousTypeD2, first_order_ode_lie_symmetry_lookup

[_separable]

2.627

6265

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

second_order_ode_missing_x

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

3.014

6266

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

second_order_ode_missing_y

[[_2nd_order, _missing_y], [_2nd_order, _reducible, _mu_y_y1]]

15.584

6267

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

second_order_ode_missing_x

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

1.801

6268

\[ {}x y^{\prime \prime }-3 y^{\prime } = 5 x \]

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

[[_2nd_order, _missing_y]]

6.202

6269

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.399

6270

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.507

6271

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

5.45

6272

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.735

6273

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.507

6274

\[ {}y^{\prime \prime }-9 y^{\prime }+20 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.418

6275

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.419

6276

\[ {}4 y^{\prime \prime }-12 y^{\prime }+9 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.543

6277

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.593

6278

\[ {}y^{\prime \prime }-6 y^{\prime }+25 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.192

6279

\[ {}4 y^{\prime \prime }+20 y^{\prime }+25 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.55

6280

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.168

6281

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

2.666

6282

\[ {}4 y^{\prime \prime }-8 y^{\prime }+7 y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.282

6283

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.425

6284

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.649

6285

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.579

6286

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.42

6287

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.948

6288

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.832

6289

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

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

1.096

6290

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.019

6291

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.768

6292

\[ {}y^{\prime \prime }+8 y^{\prime }-9 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.98

6293

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

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

[[_Emden, _Fowler]]

3.615

6294

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

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

[[_Emden, _Fowler]]

3.474

6295

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

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]]

2.625

6296

\[ {}4 x^{2} y^{\prime \prime }-3 y = 0 \]

kovacic, second_order_euler_ode

[[_Emden, _Fowler]]

0.76

6297

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

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

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

3.393

6298

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

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

2.582

6299

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

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

[[_Emden, _Fowler]]

3.976

6300

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

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

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

3.53