2.2.207 Problems 20601 to 20700

Table 2.431: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

20601

\begin{align*} y y^{\prime \prime }+\sqrt {{y^{\prime }}^{2}+a^{2} {y^{\prime \prime }}^{2}}&={y^{\prime }}^{2} \\ \end{align*}

[[_2nd_order, _missing_x]]

44.374

20602

\begin{align*} \left (x^{3}-4 x \right ) y^{\prime \prime \prime }+\left (9 x^{2}-4\right ) y^{\prime \prime }+18 y^{\prime } x +6 y&=6 \\ \end{align*}

[[_3rd_order, _fully, _exact, _linear]]

0.275

20603

\begin{align*} y x -x^{2} y^{\prime }+y^{\prime \prime }&=x \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.758

20604

\begin{align*} 3 y-\left (x +3\right ) y^{\prime }+y^{\prime \prime } x&=0 \\ \end{align*}

[_Laguerre]

0.490

20605

\begin{align*} y^{\prime \prime } x +\left (1-x \right ) y^{\prime }&={\mathrm e}^{x}+y \\ \end{align*}

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

0.917

20606

\begin{align*} \left (x +1\right ) y^{\prime \prime }-2 \left (x +3\right ) y^{\prime }+\left (x +5\right ) y&={\mathrm e}^{x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.466

20607

\begin{align*} \left (-x +3\right ) y^{\prime \prime }-\left (9-4 x \right ) y^{\prime }+\left (6-3 x \right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.461

20608

\begin{align*} -y+y^{\prime } x +y^{\prime \prime }&=X \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.341

20609

\begin{align*} y^{\prime \prime \prime }-y^{\prime \prime } x -y^{\prime }+y x&=0 \\ \end{align*}

[[_3rd_order, _with_linear_symmetries]]

0.053

20610

\begin{align*} x^{3} y^{\prime \prime \prime }+x^{2} y^{\prime \prime }-2 y^{\prime } x +2 y&=0 \\ \end{align*}

[[_3rd_order, _exact, _linear, _homogeneous]]

0.138

20611

\begin{align*} x^{2} y^{\prime \prime }-\left (x^{2}+2 x \right ) y^{\prime }+\left (2+x \right ) y&={\mathrm e}^{x} x^{3} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.243

20612

\begin{align*} y^{\prime \prime }-a x y^{\prime }+a^{2} \left (x -1\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.164

20613

\begin{align*} \left (2 x^{3}-a \right ) y^{\prime \prime }-6 x^{2} y^{\prime }+6 y x&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.111

20614

\begin{align*} y^{\prime \prime }+4 y^{\prime } x +4 x^{2} y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.393

20615

\begin{align*} y^{\prime \prime }+\frac {2 y^{\prime }}{x}+n^{2} y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.733

20616

\begin{align*} y^{\prime \prime }+\frac {2 y^{\prime }}{x}&=n^{2} y \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.456

20617

\begin{align*} y^{\prime \prime }-2 b x y^{\prime }+b^{2} x^{2} y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.579

20618

\begin{align*} y^{\prime \prime }-2 b x y^{\prime }+b^{2} x^{2} y&=x \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.936

20619

\begin{align*} 4 x^{2} y^{\prime \prime }+4 x^{5} y^{\prime }+\left (x^{3}+6 x^{2}+4\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

79.628

20620

\begin{align*} x^{2} y^{\prime \prime }+\left (-4 x^{2}+x \right ) y^{\prime }+\left (4 x^{2}-2 x +1\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.341

20621

\begin{align*} y^{\prime \prime }-2 \tan \left (x \right ) y^{\prime }+5 y&={\mathrm e}^{x} \sec \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.993

20622

\begin{align*} -\left (a^{2}+1\right ) y-2 \tan \left (x \right ) y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.682

20623

\begin{align*} y^{\prime \prime }-\frac {2 y^{\prime }}{x}+\left (n^{2}+\frac {2}{x^{2}}\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.731

20624

\begin{align*} y^{\prime \prime }+2 n \cot \left (x n \right ) y^{\prime }+\left (m^{2}-n^{2}\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.805

20625

\begin{align*} y^{\prime \prime }-\frac {y^{\prime }}{\sqrt {x}}+\frac {\left (x +\sqrt {x}-8\right ) y}{4 x^{2}}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.334

20626

\begin{align*} x^{2} y^{\prime \prime }-2 n x y^{\prime }+\left (a^{2} x^{2}+n^{2}+n \right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.843

20627

\begin{align*} y^{\prime \prime }-4 y^{\prime } x +\left (4 x^{2}-3\right ) y&={\mathrm e}^{x^{2}} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.573

20628

\begin{align*} y^{\prime \prime }+\tan \left (x \right ) y^{\prime }+y \cos \left (x \right )^{2}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.638

20629

\begin{align*} y^{\prime \prime }+\frac {2 y^{\prime }}{x}+\frac {a^{2} y}{x^{4}}&=0 \\ \end{align*}

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

1.214

20630

\begin{align*} \left (x^{3}-x \right ) y^{\prime \prime }+y^{\prime }+n^{2} x^{3} y&=0 \\ \end{align*}

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

1.850

20631

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-y^{\prime } x +m^{2} y&=0 \\ \end{align*}

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

1.292

20632

\begin{align*} y^{\prime \prime }-\cot \left (x \right ) y^{\prime }-y \sin \left (x \right )^{2}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.448

20633

\begin{align*} \sin \left (x \right )^{2} y^{\prime \prime }+\cos \left (x \right ) \sin \left (x \right ) y^{\prime }+y&=0 \\ \end{align*}

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

2.702

20634

\begin{align*} 4 y+2 x \left (x^{2}+1\right ) y^{\prime }+\left (x^{2}+1\right )^{2} y^{\prime \prime }&=0 \\ \end{align*}

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

0.933

20635

\begin{align*} y^{\prime \prime }+\left (\tan \left (x \right )-1\right )^{2} y^{\prime }-n \left (n -1\right ) y \sec \left (x \right )^{4}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.968

20636

\begin{align*} y^{\prime \prime }+\left (3 \sin \left (x \right )-\cot \left (x \right )\right ) y^{\prime }+2 y \sin \left (x \right )^{2}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

3.256

20637

\begin{align*} 3 x^{2} y^{\prime \prime }+\left (-6 x^{2}+2\right ) y^{\prime }-4 y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.570

20638

\begin{align*} y^{\prime \prime } x +\left (x -2\right ) y^{\prime }-2 y&=x^{2} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.578

20639

\begin{align*} x^{2} y^{\prime \prime }+y^{\prime }-\left (x^{2}+1\right ) y&={\mathrm e}^{-x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.816

20640

\begin{align*} \left (2+x \right ) y^{\prime \prime }-\left (5+2 x \right ) y^{\prime }+2 y&={\mathrm e}^{x} \left (x +1\right ) \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.924

20641

\begin{align*} y^{\prime \prime }+y&=x \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.531

20642

\begin{align*} y^{\prime \prime }+y&=\csc \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.631

20643

\begin{align*} 4 y+y^{\prime \prime }&=4 \tan \left (2 x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.847

20644

\begin{align*} \left (1-x \right ) y^{\prime \prime }+y^{\prime } x -y&=\left (1-x \right )^{2} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.173

20645

\begin{align*} y^{\prime \prime }-y&=\frac {2}{{\mathrm e}^{x}+1} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.443

20646

\begin{align*} -\left (x^{2}+1\right ) y-4 y^{\prime } x +\left (-x^{2}+1\right ) y^{\prime \prime }&=x \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.873

20647

\begin{align*} 2 \left (x +1\right ) y-2 x \left (x +1\right ) y^{\prime }+x^{2} y^{\prime \prime }&=-4 x^{3} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.971

20648

\begin{align*} -y+y^{\prime } x&=\left (x -1\right ) \left (y^{\prime \prime }-x +1\right ) \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.122

20649

\begin{align*} \left (-y+y^{\prime } x \right )^{2}+x^{2} y y^{\prime \prime }&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_xy]]

0.718

20650

\begin{align*} 2 \left (x +1\right ) y-2 x \left (x +1\right ) y^{\prime }+x^{2} y^{\prime \prime }&=x^{3} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.977

20651

\begin{align*} \left (x^{2}+a \right ) y^{\prime \prime }-2 y^{\prime } x +2 y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.808

20652

\begin{align*} y^{\prime \prime }-\frac {2 y^{\prime }}{x}+\left (n^{2}+\frac {2}{x^{2}}\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.737

20653

\begin{align*} y^{\prime \prime }+2 y^{\prime } x +\left (x^{2}+1\right ) y&=x^{3}+3 x \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.407

20654

\begin{align*} \left (a^{2}-x^{2}\right ) y^{\prime \prime }-\frac {a^{2} y^{\prime }}{x}+\frac {x^{2} y}{a}&=0 \\ \end{align*}

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

2.064

20655

\begin{align*} x^{4} y^{\prime \prime }+2 x^{3} y^{\prime }+n^{2} y&=0 \\ \end{align*}

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

1.240

20656

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +\frac {a^{2} y}{-x^{2}+1}&=0 \\ \end{align*}

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

1.520

20657

\begin{align*} \left (2 x -1\right ) y^{\prime \prime }-2 y^{\prime }+\left (3-2 x \right ) y&=2 \,{\mathrm e}^{x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.662

20658

\begin{align*} x^{2} y^{\prime \prime }+y^{\prime } x -y&=8 x^{3} \\ \end{align*}

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.988

20659

\begin{align*} y^{\prime \prime }+2 y^{\prime } x +\left (x^{2}+5\right ) y&=x \,{\mathrm e}^{-\frac {x^{2}}{2}} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.769

20660

\begin{align*} x \left (-x^{2}+1\right )^{2} y^{\prime \prime }+\left (-x^{2}+1\right ) \left (3 x^{2}+1\right ) y^{\prime }+4 x \left (x^{2}+1\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.412

20661

\begin{align*} y^{\prime \prime }+\left (1-\frac {2}{x^{2}}\right ) y&=x^{2} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.999

20662

\begin{align*} \left (x^{3}-2 x^{2}\right ) y^{\prime \prime }+2 x^{2} y^{\prime }-12 \left (x -2\right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.267

20663

\begin{align*} y^{\prime \prime } x -2 \left (x +1\right ) y^{\prime }+\left (2+x \right ) y&=\left (x -2\right ) {\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.375

20664

\begin{align*} x^{2} y^{\prime \prime }+y^{\prime } x -y&=0 \\ \end{align*}

[[_2nd_order, _exact, _linear, _homogeneous]]

1.434

20665

\begin{align*} x^{2} y^{\prime \prime }+y^{\prime } x -9 y&=0 \\ \end{align*}

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

0.109

20666

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-y^{\prime } x -a^{2} y&=0 \\ \end{align*}

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

1.695

20667

\begin{align*} x y^{\prime \prime } \left (\cos \left (x \right ) x -2 \sin \left (x \right )\right )+\left (x^{2}+2\right ) y^{\prime } \sin \left (x \right )-2 y \left (x \sin \left (x \right )+\cos \left (x \right )\right )&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.189

20668

\begin{align*} y^{\prime \prime } x -y^{\prime }+4 x^{3} y&=x^{5} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

2.036

20669

\begin{align*} \left (x^{2}-1\right ) y^{\prime \prime }-\left (4 x^{2}-3 x -5\right ) y^{\prime }+\left (4 x^{2}-6 x -5\right ) y&={\mathrm e}^{2 x} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.642

20670

\begin{align*} \left (x^{2}-1\right ) y^{\prime \prime }+y^{\prime } x&=m^{2} y \\ \end{align*}

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

1.210

20671

\begin{align*} y^{\prime \prime }+\left (1-\frac {1}{x}\right ) y^{\prime }+4 x^{2} y \,{\mathrm e}^{-2 x}&=4 \left (x^{3}+x^{2}\right ) {\mathrm e}^{-3 x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

2.812

20672

\begin{align*} y^{\prime \prime } x +\left (x^{2}+1\right ) y^{\prime }+2 y x&=2 x \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

71.210

20673

\begin{align*} \left (2+x \right ) y^{\prime \prime }-\left (5+2 x \right ) y^{\prime }+2 y&={\mathrm e}^{x} \left (x +1\right ) \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.866

20674

\begin{align*} -y+y^{\prime } x +\left (-x^{2}+1\right ) y^{\prime \prime }&=x \left (-x^{2}+1\right )^{{3}/{2}} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

1.605

20675

\begin{align*} x^{2} y^{\prime \prime }-\left (x^{2}+2 x \right ) y^{\prime }+\left (2+x \right ) y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.547

20676

\begin{align*} t x^{\prime }+y&=0 \\ y^{\prime } t +x&=0 \\ \end{align*}

system_of_ODEs

0.039

20677

\begin{align*} -y^{\prime } x +y&=0 \\ \end{align*}

[_separable]

2.402

20678

\begin{align*} \cot \left (y\right )-\tan \left (x \right ) y^{\prime }&=0 \\ \end{align*}

[_separable]

2.576

20679

\begin{align*} x^{3}+x y^{2}+a^{2} y+\left (y^{3}+x^{2} y-a^{2} x \right ) y^{\prime }&=0 \\ \end{align*}

[[_1st_order, _with_linear_symmetries], _rational]

3.254

20680

\begin{align*} \left (x +2 y^{3}\right ) y^{\prime }&=y \\ \end{align*}

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

12.357

20681

\begin{align*} \sec \left (x \right )^{2} \tan \left (y\right )+\sec \left (y\right )^{2} \tan \left (x \right ) y^{\prime }&=0 \\ \end{align*}

[_separable]

29.441

20682

\begin{align*} 1+y^{2}-y y^{\prime } x&=0 \\ \end{align*}

[_separable]

9.057

20683

\begin{align*} y^{2}+\left (y x +x^{2}\right ) y^{\prime }&=0 \\ \end{align*}

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

80.921

20684

\begin{align*} y^{\prime }&=\frac {6 x -2 y-7}{2 x +3 y-6} \\ \end{align*}

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

43.806

20685

\begin{align*} 2 x +y+1+\left (4 x +2 y-1\right ) y^{\prime }&=0 \\ \end{align*}

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

10.669

20686

\begin{align*} \cos \left (x \right ) y^{\prime }+\sin \left (x \right ) y&=1 \\ \end{align*}

[_linear]

2.694

20687

\begin{align*} y^{\prime }+2 y x&={\mathrm e}^{-x^{2}} \\ \end{align*}

[_linear]

2.509

20688

\begin{align*} \left (x +2 y^{3}\right ) y^{\prime }&=y \\ \end{align*}

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

9.015

20689

\begin{align*} y^{\prime }+p \left (x \right ) y&=q \left (x \right ) y^{n} \\ \end{align*}

[_Bernoulli]

3.456

20690

\begin{align*} y^{\prime }+x \sin \left (2 y\right )&=x^{3} \cos \left (y\right )^{2} \\ \end{align*}

[‘y=_G(x,y’)‘]

19.586

20691

\begin{align*} a^{2}-2 y x -y^{2}-\left (x +y\right )^{2} y^{\prime }&=0 \\ \end{align*}

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

2.109

20692

\begin{align*} x^{2} y-\left (x^{3}+y^{3}\right ) y^{\prime }&=0 \\ \end{align*}

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

1.814

20693

\begin{align*} \left (x y \sin \left (y x \right )+\cos \left (y x \right )\right ) y+\left (x y \sin \left (y x \right )-\cos \left (y x \right )\right ) y^{\prime }&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

19.892

20694

\begin{align*} y+\frac {y^{3}}{3}+\frac {x^{2}}{2}+\frac {\left (x y^{2}+x \right ) y^{\prime }}{4}&=0 \\ \end{align*}

[_rational]

2.471

20695

\begin{align*} 3 x^{2} y^{4}+2 y x +\left (2 x^{3} y^{2}-x^{2}\right ) y^{\prime }&=0 \\ \end{align*}

[_rational]

34.928

20696

\begin{align*} y^{3}-2 x^{2} y+\left (2 x y^{2}-x^{3}\right ) y^{\prime }&=0 \\ \end{align*}

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

38.237

20697

\begin{align*} 2 y^{\prime \prime }+9 y^{\prime }-18 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.197

20698

\begin{align*} y^{\prime \prime \prime \prime }-y^{\prime \prime \prime }-9 y^{\prime \prime }-11 y^{\prime }-4 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.073

20699

\begin{align*} y^{\prime \prime \prime }-8 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.059

20700

\begin{align*} y^{\prime \prime \prime }-2 y^{\prime \prime }+y^{\prime }&={\mathrm e}^{-x} \\ \end{align*}

[[_3rd_order, _missing_y]]

0.121