2.2.189 Problems 18801 to 18900

Table 2.379: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

18801

\[ {}y^{\prime \prime \prime }+y = 3+{\mathrm e}^{-x}+5 \,{\mathrm e}^{2 x} \]

[[_3rd_order, _linear, _nonhomogeneous]]

0.151

18802

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

[[_3rd_order, _linear, _nonhomogeneous]]

0.145

18803

\[ {}y^{\prime \prime }-2 y^{\prime }+y = 3 \,{\mathrm e}^{\frac {5 x}{2}} \]

[[_2nd_order, _with_linear_symmetries]]

1.158

18804

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

[[_3rd_order, _missing_y]]

0.105

18805

\[ {}y^{\prime \prime \prime }+8 y = x^{4}+2 x +1 \]

[[_3rd_order, _linear, _nonhomogeneous]]

0.115

18806

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

[[_3rd_order, _linear, _nonhomogeneous]]

0.145

18807

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.532

18808

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.499

18809

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

[[_3rd_order, _linear, _nonhomogeneous]]

0.352

18810

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

[[_high_order, _linear, _nonhomogeneous]]

0.136

18811

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.493

18812

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

[[_2nd_order, _linear, _nonhomogeneous]]

11.694

18813

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.749

18814

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.695

18815

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

[[_high_order, _missing_x]]

0.068

18816

\[ {}y^{\left (5\right )}-13 y^{\prime \prime \prime }+26 y^{\prime \prime }+82 y^{\prime }+104 y = 0 \]

[[_high_order, _missing_x]]

0.078

18817

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

[[_3rd_order, _missing_y]]

0.126

18818

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

[[_2nd_order, _linear, _nonhomogeneous]]

6.756

18819

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = x +{\mathrm e}^{m x} \]

[[_2nd_order, _with_linear_symmetries]]

1.319

18820

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.118

18821

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }-6 y^{\prime }+8 y = x \]

[[_3rd_order, _with_linear_symmetries]]

0.097

18822

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

[[_high_order, _missing_y]]

0.135

18823

\[ {}y^{\prime \prime \prime }-13 y^{\prime }+12 y = x \]

[[_3rd_order, _with_linear_symmetries]]

0.095

18824

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

[[_high_order, _linear, _nonhomogeneous]]

0.164

18825

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

[[_high_order, _linear, _nonhomogeneous]]

0.944

18826

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.005

18827

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.254

18828

\[ {}y^{\prime \prime }+n^{2} y = x^{4} {\mathrm e}^{x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

4.188

18829

\[ {}y^{\prime \prime \prime \prime }-a^{4} y = x^{4} \]

[[_high_order, _linear, _nonhomogeneous]]

0.123

18830

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

[[_high_order, _missing_y]]

0.099

18831

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

[[_high_order, _linear, _nonhomogeneous]]

0.128

18832

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

[[_2nd_order, _linear, _nonhomogeneous]]

77.670

18833

\[ {}y^{\prime \prime \prime }-7 y^{\prime }-6 y = {\mathrm e}^{2 x} \left (x +1\right ) \]

[[_3rd_order, _linear, _nonhomogeneous]]

0.122

18834

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

[[_2nd_order, _linear, _nonhomogeneous]]

45.351

18835

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

[[_3rd_order, _with_linear_symmetries]]

0.113

18836

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

[[_high_order, _linear, _nonhomogeneous]]

0.132

18837

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }+3 y^{\prime }-y = x \,{\mathrm e}^{x}+{\mathrm e}^{x} \]

[[_3rd_order, _linear, _nonhomogeneous]]

0.140

18838

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

[[_2nd_order, _linear, _nonhomogeneous]]

36.268

18839

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.528

18840

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

[[_3rd_order, _linear, _nonhomogeneous]]

0.169

18841

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

[[_2nd_order, _with_linear_symmetries]]

1.152

18842

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }+4 y = {\mathrm e}^{3 x} \]

[[_3rd_order, _with_linear_symmetries]]

0.100

18843

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

[[_3rd_order, _linear, _nonhomogeneous]]

1.422

18844

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

[[_2nd_order, _with_linear_symmetries]]

1.694

18845

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

[[_2nd_order, _with_linear_symmetries]]

1.257

18846

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

[[_3rd_order, _exact, _linear, _homogeneous]]

0.122

18847

\[ {}x^{4} y^{\prime \prime \prime \prime }+6 x^{3} y^{\prime \prime \prime }+9 x^{2} y^{\prime \prime }+3 x y^{\prime }+y = 0 \]

[[_high_order, _with_linear_symmetries]]

0.133

18848

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.441

18849

\[ {}x^{2} y^{\prime \prime }+5 x y^{\prime }+4 y = x^{4} \]

[[_2nd_order, _with_linear_symmetries]]

1.396

18850

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

[[_2nd_order, _with_linear_symmetries]]

1.191

18851

\[ {}x^{2} y^{\prime \prime }+7 x y^{\prime }+5 y = x^{5} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.609

18852

\[ {}\left (5+2 x \right )^{2} y^{\prime \prime }-6 \left (5-2 x \right ) y^{\prime }+8 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.768

18853

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

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

1.503

18854

\[ {}y^{\prime \prime \prime }-\frac {4 y^{\prime \prime }}{x}+\frac {5 y^{\prime }}{x^{2}}-\frac {2 y}{x^{3}} = 1 \]

[[_3rd_order, _exact, _linear, _nonhomogeneous]]

0.458

18855

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.944

18856

\[ {}x^{3} y^{\prime \prime \prime }-3 x^{2} y^{\prime \prime }+7 x y^{\prime }-8 y = 0 \]

[[_3rd_order, _with_linear_symmetries]]

0.111

18857

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

[[_2nd_order, _with_linear_symmetries]]

1.289

18858

\[ {}x^{3} y^{\prime \prime \prime }+6 x^{2} y^{\prime \prime }+4 x y^{\prime }-4 y = 0 \]

[[_3rd_order, _with_linear_symmetries]]

0.114

18859

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

[[_3rd_order, _exact, _linear, _nonhomogeneous]]

0.725

18860

\[ {}16 \left (x +1\right )^{4} y^{\prime \prime \prime \prime }+96 \left (x +1\right )^{3} y^{\prime \prime \prime }+104 \left (x +1\right )^{2} y^{\prime \prime }+8 \left (x +1\right ) y^{\prime }+y = x^{2}+4 x +3 \]

[[_high_order, _with_linear_symmetries]]

0.055

18861

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

2.213

18862

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

[[_2nd_order, _with_linear_symmetries]]

1.517

18863

\[ {}x^{4} y^{\prime \prime \prime \prime }+6 x^{3} y^{\prime \prime \prime }+9 x^{2} y^{\prime \prime }+3 x y^{\prime }+y = \left (1+\ln \left (x \right )\right )^{2} \]

[[_high_order, _linear, _nonhomogeneous]]

0.879

18864

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

[[_3rd_order, _with_linear_symmetries]]

0.296

18865

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

2.071

18866

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

[[_2nd_order, _linear, _nonhomogeneous]]

53.849

18867

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

[[_2nd_order, _linear, _nonhomogeneous]]

9.215

18868

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

[[_3rd_order, _fully, _exact, _linear]]

0.391

18869

\[ {}x^{5} y^{\prime \prime }+3 x^{3} y^{\prime }+\left (3-6 x \right ) x^{2} y = x^{4}+2 x -5 \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.725

18870

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.156

18871

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

0.777

18872

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

[[_2nd_order, _with_linear_symmetries]]

0.822

18873

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

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _with_linear_symmetries], [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_poly_yn]]

5.555

18874

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

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

0.980

18875

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

[[_3rd_order, _quadrature]]

0.097

18876

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

[[_high_order, _quadrature]]

0.213

18877

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

[[_2nd_order, _quadrature]]

2.335

18878

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

[[_2nd_order, _missing_x]]

1.707

18879

\[ {}y^{\prime \prime } = \frac {1}{\sqrt {a y}} \]

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

30.605

18880

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

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

66.271

18881

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

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

66.344

18882

\[ {}x^{2} y^{\prime \prime \prime }-4 x y^{\prime \prime }+6 y^{\prime } = 4 \]

[[_3rd_order, _missing_y]]

0.187

18883

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

[[_2nd_order, _missing_x]]

4.209

18884

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

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

0.845

18885

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

[[_3rd_order, _missing_y], [_3rd_order, _with_linear_symmetries], [_3rd_order, _reducible, _mu_y2], [_3rd_order, _reducible, _mu_poly_yn]]

0.865

18886

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

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

0.462

18887

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

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

3.319

18888

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

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

2.162

18889

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

[[_2nd_order, _missing_x]]

5.652

18890

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

[[_high_order, _missing_x]]

0.063

18891

\[ {}y^{\left (5\right )}-m^{2} y^{\prime \prime \prime } = {\mathrm e}^{a x} \]

[[_high_order, _missing_y]]

0.118

18892

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

[[_high_order, _missing_y]]

0.532

18893

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

[[_2nd_order, _missing_y], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_poly_yn]]

1.822

18894

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

[[_2nd_order, _missing_x]]

2.549

18895

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

[[_2nd_order, _missing_y]]

0.734

18896

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

[[_3rd_order, _missing_x], [_3rd_order, _missing_y], [_3rd_order, _exact, _nonlinear], [_3rd_order, _with_linear_symmetries], [_3rd_order, _reducible, _mu_y2], [_3rd_order, _reducible, _mu_poly_yn]]

0.497

18897

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

[[_2nd_order, _exact, _linear, _homogeneous]]

0.715

18898

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.083

18899

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

[[_2nd_order, _missing_x]]

0.373

18900

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

[[_2nd_order, _with_linear_symmetries]]

0.396