2.2.46 Problems 4501 to 4600

Table 2.93: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

4501

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

[_separable]

1.277

4502

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

[_rational, _Abel]

1.331

4503

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

[_linear]

1.391

4504

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

[_linear]

0.980

4505

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

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

1.381

4506

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

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

2.010

4507

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

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

2.123

4508

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

[_separable]

1.667

4509

\[ {}x^{3} y^{\prime }+20+x^{2} y \left (1-x^{2} y\right ) = 0 \]

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

1.826

4510

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

[_rational, _Riccati]

1.896

4511

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

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

95.718

4512

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

[‘y=_G(x,y’)‘]

2.672

4513

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

[_linear]

1.335

4514

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

[_linear]

1.727

4515

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

[_linear]

1.261

4516

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

[_linear]

1.665

4517

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

[_separable]

1.247

4518

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

[_separable]

1.733

4519

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

[_linear]

1.335

4520

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

[_linear]

3.201

4521

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

[_linear]

1.615

4522

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

[_linear]

1.371

4523

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

[_rational, _Riccati]

144.013

4524

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

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

2.749

4525

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

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

96.299

4526

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

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

20.509

4527

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

[_rational, _Bernoulli]

3.119

4528

\[ {}x \left (c \,x^{2}+b x +a \right ) y^{\prime }+x^{2}-\left (c \,x^{2}+b x +a \right ) y = y^{2} \]

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

3.157

4529

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

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

3.181

4530

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

[_rational, [_Riccati, _special]]

1.763

4531

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

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

48.883

4532

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

[_separable]

1.754

4533

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

[_linear]

1.688

4534

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

[_rational, _Riccati]

1.528

4535

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

[_rational, _Bernoulli]

1.465

4536

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

[_separable]

1.665

4537

\[ {}\left (c \,x^{2}+b x +a \right )^{2} \left (y^{\prime }+y^{2}\right )+A = 0 \]

[_rational, _Riccati]

4.543

4538

\[ {}x^{5} y^{\prime } = 1-3 x^{4} y \]

[_linear]

1.463

4539

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

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

1.633

4540

\[ {}x^{7} y^{\prime }+5 x^{3} y^{2}+2 \left (x^{2}+1\right ) y^{3} = 0 \]

[_rational, _Abel]

0.648

4541

\[ {}x^{n} y^{\prime } = a +b \,x^{n -1} y \]

[_linear]

1.200

4542

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

[_Riccati]

1.847

4543

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

[_Riccati]

50.027

4544

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

[[_homogeneous, ‘class G‘], _Riccati]

4.406

4545

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

[_rational, _Riccati]

2.942

4546

\[ {}x^{k} y^{\prime } = a \,x^{m}+b y^{n} \]

[_Chini]

0.792

4547

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

[_linear]

2.033

4548

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

[_separable]

3.046

4549

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

[_separable]

3.174

4550

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

[_linear]

2.072

4551

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

[_separable]

15.937

4552

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

[_separable]

18.165

4553

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

[_separable]

2.664

4554

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

[_separable]

26.319

4555

\[ {}y^{\prime } \sqrt {X}+\sqrt {Y} = 0 \]

[_quadrature]

1.086

4556

\[ {}y^{\prime } \sqrt {X} = \sqrt {Y} \]

[_quadrature]

0.346

4557

\[ {}x^{{3}/{2}} y^{\prime } = a +b \,x^{{3}/{2}} y^{2} \]

[_rational, [_Riccati, _special]]

3.257

4558

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

[_separable]

6.174

4559

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

[_separable]

13.097

4560

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

[_separable]

8.191

4561

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

[_separable]

7.674

4562

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

[_quadrature]

1.069

4563

\[ {}y^{\prime } \sqrt {X}+\sqrt {Y} = 0 \]

[_quadrature]

0.401

4564

\[ {}y^{\prime } \sqrt {X} = \sqrt {Y} \]

[_quadrature]

0.342

4565

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

[_separable]

3.830

4566

\[ {}y^{\prime } \left (4 x^{3}+\operatorname {a1} x +\operatorname {a0} \right )^{{2}/{3}}+\left (\operatorname {a0} +\operatorname {a1} y+4 y^{3}\right )^{{2}/{3}} = 0 \]

[_separable]

4.200

4567

\[ {}X^{{2}/{3}} y^{\prime } = Y^{{2}/{3}} \]

[_quadrature]

0.477

4568

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

[_Bernoulli]

56.442

4569

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

[_separable]

12.704

4570

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

[_separable]

4.066

4571

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

[_separable]

4.190

4572

\[ {}\left (\operatorname {a0} +\operatorname {a1} \sin \left (x \right )^{2}\right ) y^{\prime }+\operatorname {a2} x \left (\operatorname {a3} +\operatorname {a1} \sin \left (x \right )^{2}\right )+\operatorname {a1} y \sin \left (2 x \right ) = 0 \]

[_linear]

24.516

4573

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

[_linear]

3.059

4574

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

[_linear]

2.875

4575

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

[_separable]

4.263

4576

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

[_separable]

1.763

4577

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

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

0.561

4578

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

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

17.993

4579

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

[_separable]

3.292

4580

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

[[_Abel, ‘2nd type‘, ‘class A‘]]

1.520

4581

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

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

3.042

4582

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

[_rational, _Bernoulli]

2.011

4583

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

[_Bernoulli]

4.961

4584

\[ {}y y^{\prime } = \operatorname {a0} +\operatorname {a1} y+\operatorname {a2} y^{2} \]

[_quadrature]

5.375

4585

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

[_separable]

3.700

4586

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

[_Bernoulli]

24.846

4587

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

[_quadrature]

1.740

4588

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

[_quadrature]

2.128

4589

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

[NONE]

1.406

4590

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

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

12.258

4591

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

[_separable]

1.736

4592

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

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

9.582

4593

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

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

3.661

4594

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

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

10.414

4595

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

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

9.014

4596

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

[[_linear, ‘class A‘]]

0.828

4597

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

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

2.977

4598

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

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

3.875

4599

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

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

9.671

4600

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

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

3.547