2.2.47 Problems 4601 to 4700

Table 2.95: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

4601

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

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

0.809

4602

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

[[_2nd_order, _with_linear_symmetries]]

0.938

4603

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

[[_2nd_order, _with_linear_symmetries]]

0.875

4604

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

[[_2nd_order, _with_linear_symmetries]]

1.269

4605

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

[[_2nd_order, _with_linear_symmetries]]

0.756

4606

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

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

1.273

4607

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

[[_2nd_order, _with_linear_symmetries]]

0.658

4608

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

[_quadrature]

0.468

4609

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

[[_linear, ‘class A‘]]

1.332

4610

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

[[_linear, ‘class A‘]]

1.582

4611

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

[[_linear, ‘class A‘]]

0.809

4612

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

[[_linear, ‘class A‘]]

1.469

4613

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

[[_linear, ‘class A‘]]

1.465

4614

\[ {}y^{\prime } = a +b \,{\mathrm e}^{k x}+c y \]

[[_linear, ‘class A‘]]

1.042

4615

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

[_linear]

1.474

4616

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

[_linear]

1.150

4617

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

[_linear]

1.878

4618

\[ {}y^{\prime } = a \,x^{n} y \]

[_separable]

1.059

4619

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

[_linear]

1.638

4620

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

[_linear]

1.489

4621

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

[_separable]

1.361

4622

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

[_linear]

1.136

4623

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

[_linear]

1.490

4624

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

[_separable]

2.818

4625

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

[_linear]

1.531

4626

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

[_linear]

1.952

4627

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

[_linear]

1.495

4628

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

[_linear]

16.899

4629

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

[_linear]

2.923

4630

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

[_linear]

10.421

4631

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

[_linear]

88.287

4632

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

[_separable]

1.873

4633

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

[_linear]

1.848

4634

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

[_separable]

1.374

4635

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

[_linear]

1.616

4636

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

[_linear]

1.528

4637

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

[_linear]

1.408

4638

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

[_linear]

1.686

4639

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

[_linear]

1.710

4640

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

[_linear]

1.666

4641

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

[_linear]

4.126

4642

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

[_linear]

1.679

4643

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

[_separable]

1.670

4644

\[ {}y^{\prime } = 6 \,{\mathrm e}^{2 x}-y \tanh \left (x \right ) \]

[_linear]

1.664

4645

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

[_linear]

0.577

4646

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

[_linear]

1.454

4647

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

[_Riccati]

0.974

4648

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

[_Riccati]

1.119

4649

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

[_Riccati]

1.341

4650

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

[[_homogeneous, ‘class C‘], _Riccati]

1.473

4651

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

[[_homogeneous, ‘class C‘], _Riccati]

1.682

4652

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

[[_homogeneous, ‘class C‘], _Riccati]

3.326

4653

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

[_Riccati]

1.721

4654

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

[[_1st_order, _with_linear_symmetries], _Riccati]

0.943

4655

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

[[_1st_order, _with_linear_symmetries], _Riccati]

1.768

4656

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

[_Riccati]

2.856

4657

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

[_Riccati]

4.960

4658

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

[_Riccati]

1.828

4659

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

[[_homogeneous, ‘class C‘], _Riccati]

4.091

4660

\[ {}y^{\prime } = \left (1+4 x +9 y\right )^{2} \]

[[_homogeneous, ‘class C‘], _Riccati]

36.381

4661

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

[_Riccati]

1.326

4662

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

[_quadrature]

1.034

4663

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

[[_Riccati, _special]]

1.029

4664

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

[_Riccati]

1.236

4665

\[ {}y^{\prime } = a \,x^{n -1}+b \,x^{2 n}+c y^{2} \]

[_Riccati]

3.181

4666

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

[[_Riccati, _special]]

1.225

4667

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

[_quadrature]

1.097

4668

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

[_Riccati]

1.202

4669

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

[_Riccati]

1.310

4670

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

[_Riccati]

1.442

4671

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

[_separable]

1.828

4672

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

[_Riccati]

2.122

4673

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

[_Riccati]

1.878

4674

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

[_Riccati]

1.977

4675

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

[_separable]

1.285

4676

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

[_separable]

2.231

4677

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

[_Riccati]

2.074

4678

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

[_Bernoulli]

2.108

4679

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

[_linear]

2.292

4680

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

[_Riccati]

6.318

4681

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

[_linear]

2.696

4682

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

[_separable]

2.468

4683

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

[_Riccati]

2.374

4684

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

[_separable]

3.759

4685

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

[_Abel]

0.804

4686

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

[_Abel]

1.343

4687

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

[_Abel]

0.888

4688

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

[_quadrature]

1.742

4689

\[ {}y^{\prime } = \operatorname {a0} +\operatorname {a1} y+\operatorname {a2} y^{2}+\operatorname {a3} y^{3} \]

[_quadrature]

1.446

4690

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

[_separable]

2.095

4691

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

[_Bernoulli]

2.286

4692

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

[[_homogeneous, ‘class G‘], _Abel]

2.080

4693

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

[_Bernoulli]

1.272

4694

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

[_Bernoulli]

2.392

4695

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

[_separable]

2.819

4696

\[ {}y^{\prime } = \operatorname {f0} \left (x \right )+\operatorname {f1} \left (x \right ) y+\operatorname {f2} \left (x \right ) y^{2}+\operatorname {f3} \left (x \right ) y^{3} \]

[_Abel]

4.281

4697

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

[[_homogeneous, ‘class G‘], _Chini]

1.914

4698

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

[_Bernoulli]

1.992

4699

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

[_Chini]

2.463

4700

\[ {}y^{\prime } = \sqrt {{| y|}} \]

[_quadrature]

1.352