2.2.44 Problems 4301 to 4400

Table 2.89: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

4301

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

[_separable]

1.535

4302

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

[_separable]

2.849

4303

\[ {}r y^{\prime } = \frac {\left (a^{2}-r^{2}\right ) \tan \left (y\right )}{a^{2}+r^{2}} \]

[_separable]

2.580

4304

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

[_separable]

4.290

4305

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

[_separable]

4.491

4306

\[ {}y^{2} y^{\prime } = 2+3 y^{6} \]
i.c.

[_quadrature]

11.865

4307

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

[_separable]

3.089

4308

\[ {}y^{\prime } = \frac {x^{3} {\mathrm e}^{x^{2}}}{y \ln \left (y\right )} \]

[_separable]

2.184

4309

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

[_separable]

7.190

4310

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

[_separable]

1.767

4311

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

[_separable]

2.737

4312

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

[_separable]

22.454

4313

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

[_separable]

2.136

4314

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

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

2.253

4315

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

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

5.930

4316

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

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

4.215

4317

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

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

4.360

4318

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

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

5.529

4319

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

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

7.279

4320

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

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

4.850

4321

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

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

1.855

4322

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

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

4.581

4323

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

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

3.240

4324

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

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

6.031

4325

\[ {}y^{\prime } = \left (x +1\right )^{2}+\left (4 y+1\right )^{2}+8 x y+1 \]

[[_homogeneous, ‘class C‘], _Riccati]

32.027

4326

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

[_exact, _rational]

1.683

4327

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

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

1.588

4328

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

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

1.563

4329

\[ {}3 y \left (x^{2}-1\right )+\left (x^{3}+8 y-3 x \right ) y^{\prime } = 0 \]

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

1.408

4330

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

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

2.249

4331

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

[_exact]

35.994

4332

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

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

37.123

4333

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

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

72.469

4334

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

[‘y=_G(x,y’)‘]

2.986

4335

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

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

1.919

4336

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

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

1.534

4337

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

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

2.536

4338

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

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

1.497

4339

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

[[_1st_order, _with_linear_symmetries], _rational]

1.275

4340

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

[_rational]

1.492

4341

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

[[_1st_order, _with_linear_symmetries], _rational]

2.879

4342

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

[_rational, _Bernoulli]

1.594

4343

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

[_rational]

1.439

4344

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

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

1.294

4345

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

[‘y=_G(x,y’)‘]

3.006

4346

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

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

1.680

4347

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

[[_homogeneous, ‘class G‘], _dAlembert]

72.702

4348

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

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

3.673

4349

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

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

3.023

4350

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

[[_homogeneous, ‘class D‘]]

2.359

4351

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

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

1.812

4352

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

[[_homogeneous, ‘class G‘]]

51.120

4353

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

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

3.575

4354

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

[_rational]

1.823

4355

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

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

2.392

4356

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

[[_1st_order, _with_linear_symmetries], [_Abel, ‘2nd type‘, ‘class A‘]]

1.228

4357

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

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

1.468

4358

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

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

12.462

4359

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

[_linear]

0.329

4360

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

[_quadrature]

2.235

4361

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

[_separable]

1.591

4362

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

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

1.449

4363

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

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

2.266

4364

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

[[_1st_order, _with_exponential_symmetries]]

1.134

4365

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

[[_1st_order, _with_linear_symmetries], _rational]

1.192

4366

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

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

1.559

4367

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

[_linear]

0.235

4368

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

[[_1st_order, _with_linear_symmetries]]

1.296

4369

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

[_linear]

0.362

4370

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

[_linear]

0.363

4371

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

[_linear]

0.346

4372

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

[_linear]

0.247

4373

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

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

2.642

4374

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

[_Riccati]

0.449

4375

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

[_Bernoulli]

0.736

4376

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

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

6.069

4377

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

[_rational, _Bernoulli]

0.497

4378

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

0.321

4379

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

[_Bernoulli]

0.489

4380

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

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

0.533

4381

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

[_Bernoulli]

0.374

4382

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

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

3.729

4383

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.594

4384

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.472

4385

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

[_quadrature]

0.228

4386

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

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

1.236

4387

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

[_quadrature]

1.004

4388

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.561

4389

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

[[_1st_order, _with_linear_symmetries]]

108.152

4390

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

[[_1st_order, _with_linear_symmetries]]

8.028

4391

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

[[_1st_order, _with_linear_symmetries]]

5.157

4392

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

[[_1st_order, _with_linear_symmetries]]

9.514

4393

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

[[_homogeneous, ‘class G‘]]

116.164

4394

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

[[_homogeneous, ‘class G‘], _dAlembert]

4.969

4395

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

6.502

4396

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

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

2.865

4397

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

[[_homogeneous, ‘class G‘]]

2.507

4398

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

[_separable]

1.862

4399

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

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

8.765

4400

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

[_exact, _Bernoulli]

6.125