2.2.19 Problems 1801 to 1900

Table 2.55: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

1801

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x -1\right ) \left (y^{\prime }+y^{2}\right )-\left (3 x +2\right ) y-6 x +8&=0 \end {array} \]

[_rational, _Riccati]

45.302

1802

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (y^{\prime }+y^{2}\right )+y x +x^{2}-\frac {1}{4}&=0 \end {array} \]

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

10.111

1803

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (y^{\prime }+y^{2}\right )-7 y x +7&=0 \end {array} \]

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

44.785

1804

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+9 y&=\tan \left (3 x \right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.533

1805

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y&=\sin \left (2 x \right ) \sec \left (2 x \right )^{2} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.816

1806

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-3 y^{\prime }+2 y&=\frac {4}{1+{\mathrm e}^{-x}} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.852

1807

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+2 y&=3 \,{\mathrm e}^{x} \sec \left (x \right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.289

1808

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+y&=14 x^{{3}/{2}} {\mathrm e}^{x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.987

1809

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y&=\frac {4 \,{\mathrm e}^{-x}}{1-{\mathrm e}^{-2 x}} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.878

1810

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+y^{\prime } x -y&=2 x^{2}+2 \end {array} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

5.701

1811

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +\left (-2 x +2\right ) y^{\prime }+\left (x -2\right ) y&={\mathrm e}^{2 x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

8.671

1812

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 x^{2} y^{\prime \prime }+\left (-8 x^{2}+4 x \right ) y^{\prime }+\left (4 x^{2}-4 x -1\right ) y&=4 \sqrt {x}\, {\mathrm e}^{x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.745

1813

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y^{\prime } x +\left (4 x^{2}+2\right ) y&=4 \,{\mathrm e}^{-x \left (2+x \right )} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.589

1814

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-4 y^{\prime } x +6 y&=x^{{5}/{2}} \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

6.097

1815

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-3 y^{\prime } x +3 y&=2 x^{4} \sin \left (x \right ) \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

14.746

1816

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x +1\right ) y^{\prime \prime }-2 y^{\prime }-\left (2 x +3\right ) y&=\left (2 x +1\right )^{2} {\mathrm e}^{-x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.023

1817

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime } x +2 y^{\prime }+2 y&=\sin \left (\sqrt {x}\right ) \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.391

1818

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x -\left (2 x +2\right ) y^{\prime }+\left (2+x \right ) y&=6 \,{\mathrm e}^{x} x^{3} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.983

1819

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-\left (2 a -1\right ) x y^{\prime }+a^{2} y&=x^{1+a} \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

11.773

1820

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-2 y^{\prime } x +\left (x^{2}+2\right ) y&=\cos \left (x \right ) x^{3} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.568

1821

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x -y^{\prime }-4 x^{3} y&=8 x^{5} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

6.929

1822

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \sin \left (x \right ) y^{\prime \prime }+\left (2 \sin \left (x \right )-\cos \left (x \right )\right ) y^{\prime }+\left (-\cos \left (x \right )+\sin \left (x \right )\right ) y&={\mathrm e}^{-x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

13.069

1823

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 x^{2} y^{\prime \prime }-4 y^{\prime } x +\left (-16 x^{2}+3\right ) y&=8 x^{{5}/{2}} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.154

1824

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 x^{2} y^{\prime \prime }-4 y^{\prime } x +\left (4 x^{2}+3\right ) y&=x^{{7}/{2}} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.158

1825

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-2 y^{\prime } x -\left (x^{2}-2\right ) y&=3 x^{4} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.428

1826

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-2 x \left (x +1\right ) y^{\prime }+\left (x^{2}+2 x +2\right ) y&={\mathrm e}^{x} x^{3} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.278

1827

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-y^{\prime } x -3 y&=x^{{3}/{2}} \end {array} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

10.665

1828

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-x \left (x +4\right ) y^{\prime }+2 \left (x +3\right ) y&={\mathrm e}^{x} x^{4} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.277

1829

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-2 x \left (2+x \right ) y^{\prime }+\left (x^{2}+4 x +6\right ) y&=2 x \,{\mathrm e}^{x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.456

1830

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }-4 y^{\prime } x +\left (x^{2}+6\right ) y&=x^{4} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.451

1831

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+x \right ) y^{\prime \prime }-y^{\prime } x +y&=2 \left (-1+x \right )^{2} {\mathrm e}^{x} \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

11.229

1832

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 x^{2} y^{\prime \prime }-4 x \left (x +1\right ) y^{\prime }+\left (2 x +3\right ) y&=x^{{5}/{2}} {\mathrm e}^{x} \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.333

1833

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x -1\right ) y^{\prime \prime }-\left (3 x +2\right ) y^{\prime }-\left (6 x -8\right ) y&=\left (3 x -1\right )^{2} {\mathrm e}^{2 x}\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=2\\ \end {array} \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.381

1834

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+x \right )^{2} y^{\prime \prime }-2 \left (-1+x \right ) y^{\prime }+2 y&=\left (-1+x \right )^{2}\\ y \left (0\right )&=3\\ y^{\prime }\left (0\right )&=-6\\ \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

634.993

1835

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+x \right )^{2} y^{\prime \prime }-\left (x^{2}-1\right ) y^{\prime }+\left (x +1\right ) y&=\left (-1+x \right )^{3} {\mathrm e}^{x}\\ y \left (0\right )&=4\\ y^{\prime }\left (0\right )&=-6\\ \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

2.438

1836

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-1+x \right )^{2} y^{\prime \prime }+4 y^{\prime } x +2 y&=2 x\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=-2\\ \end {array} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

10.873

1837

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+2 y^{\prime } x -2 y&=-2 x^{2}\\ y \left (1\right )&=1\\ y^{\prime }\left (1\right )&=-1\\ \end {array} \]

[[_2nd_order, _with_linear_symmetries]]

4.452

1838

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x +1\right ) \left (2 x +3\right ) y^{\prime \prime }+2 \left (2+x \right ) y^{\prime }-2 y&=\left (2 x +3\right )^{2}\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

3.679

1839

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2+x \right ) y^{\prime \prime }+y^{\prime } x +3 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.300

1840

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x^{2}+1\right ) y^{\prime \prime }+3 x^{2} y^{\prime }-2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.334

1841

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+1\right ) y^{\prime \prime }+\left (2-3 x \right ) y^{\prime }+4 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.576

1842

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+\left (-x +2\right ) y^{\prime }+3 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

8.241

1843

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x^{2}+1\right ) y^{\prime \prime }-2 y^{\prime } x +4 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.227

1844

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime } x +\left (4+2 x \right ) y^{\prime }+\left (2+x \right ) y&=0 \end {array} \]

Series expansion around \(x=-1\).

[[_2nd_order, _with_linear_symmetries]]

1.601

1845

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{\prime \prime }+2 y^{\prime } x -3 y x&=0 \end {array} \]

Series expansion around \(x=2\).

[[_Emden, _Fowler]]

1.653

1846

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x +2\right ) y^{\prime \prime }+2 y&=0\\ y \left (0\right )&=a_{0}\\ y^{\prime }\left (0\right )&=a_{1}\\ \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.124

1847

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x +1\right ) y^{\prime \prime }+2 \left (-1+x \right )^{2} y^{\prime }+3 y&=0\\ y \left (1\right )&=a_{0}\\ y^{\prime }\left (1\right )&=a_{1}\\ \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _with_linear_symmetries]]

1.473

1848

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (1-x \right ) x^{2} y^{\prime \prime }+x \left (x +4\right ) y^{\prime }+\left (-x +2\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

22.464

1849

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (x +1\right ) y^{\prime \prime }+x \left (2 x +1\right ) y^{\prime }-\left (6 x +4\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

22.838

1850

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (x +1\right ) y^{\prime \prime }-x \left (-x^{2}-6 x +1\right ) y^{\prime }+\left (x^{2}+6 x +1\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

8.492

1851

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (1+3 x \right ) y^{\prime \prime }+x \left (x^{2}+12 x +2\right ) y^{\prime }+2 x \left (x +3\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

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

1.967

1852

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (2 x^{2}+1\right ) y^{\prime \prime }+x \left (2 x^{2}+4\right ) y^{\prime }+2 \left (-x^{2}+1\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.472

1853

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} \left (x^{2}+2\right ) y^{\prime \prime }+2 x \left (x^{2}+5\right ) y^{\prime }+2 \left (-x^{2}+3\right ) y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

22.793

1854

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+6 y^{\prime } x +6 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.152

1855

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+2 y^{\prime } x -2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.076

1856

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }-8 y^{\prime } x +20 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.042

1857

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{2}+1\right ) y^{\prime \prime }-8 y^{\prime } x -12 y&=0 \end {array} \]

Series expansion around \(x=0\).

[_Gegenbauer]

1.047

1858

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+1\right ) y^{\prime \prime }+7 y^{\prime } x +2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.115

1859

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+2 y^{\prime } x +\frac {y}{4}&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.297

1860

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{2}+1\right ) y^{\prime \prime }-5 y^{\prime } x -4 y&=0 \end {array} \]

Series expansion around \(x=0\).

[_Gegenbauer]

1.331

1861

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }-10 y^{\prime } x +28 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.240

1862

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y^{\prime } x +2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.980

1863

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime } x +3 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.116

1864

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+y^{\prime } x +y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=-1\\ \end {array} \]

Series expansion around \(x=0\).

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

8.499

1865

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+1\right ) y^{\prime \prime }-9 y^{\prime } x -6 y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=-1\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.128

1866

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (8 x^{2}+1\right ) y^{\prime \prime }+2 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=-1\\ \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

1.010

1867

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y&=0 \end {array} \]

Series expansion around \(x=3\).

[[_2nd_order, _missing_x]]

0.907

1868

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-\left (x -3\right ) y^{\prime }-y&=0 \end {array} \]

Series expansion around \(x=3\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.115

1869

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}-4 x +1\right ) y^{\prime \prime }+10 \left (-1+x \right ) y^{\prime }+6 y&=0 \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.309

1870

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}-8 x +11\right ) y^{\prime \prime }-16 \left (x -2\right ) y^{\prime }+36 y&=0 \end {array} \]

Series expansion around \(x=2\).

[[_2nd_order, _with_linear_symmetries]]

1.425

1871

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x^{2}+6 x +5\right ) y^{\prime \prime }+9 \left (x +1\right ) y^{\prime }+3 y&=0 \end {array} \]

Series expansion around \(x=-1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.302

1872

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}-4\right ) y^{\prime \prime }-y^{\prime } x -3 y&=0\\ y \left (0\right )&=-1\\ y^{\prime }\left (0\right )&=2\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.182

1873

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+\left (x -3\right ) y^{\prime }+3 y&=0\\ y \left (3\right )&=-2\\ y^{\prime }\left (3\right )&=3\\ \end {array} \]

Series expansion around \(x=3\).

[[_2nd_order, _with_linear_symmetries]]

1.210

1874

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x^{2}-6 x +5\right ) y^{\prime \prime }+\left (-1+x \right ) y^{\prime }+12 y&=0\\ y \left (1\right )&=-1\\ y^{\prime }\left (1\right )&=1\\ \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _with_linear_symmetries]]

1.365

1875

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (4 x^{2}-24 x +37\right ) y^{\prime \prime }+y&=0\\ y \left (3\right )&=4\\ y^{\prime }\left (3\right )&=-6\\ \end {array} \]

Series expansion around \(x=3\).

[[_Emden, _Fowler]]

1.221

1876

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}-8 x +14\right ) y^{\prime \prime }-8 \left (x -4\right ) y^{\prime }+20 y&=0\\ y \left (4\right )&=3\\ y^{\prime }\left (4\right )&=-4\\ \end {array} \]

Series expansion around \(x=4\).

[[_2nd_order, _with_linear_symmetries]]

1.234

1877

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+4 x +5\right ) y^{\prime \prime }-20 \left (x +1\right ) y^{\prime }+60 y&=0\\ y \left (-1\right )&=3\\ y^{\prime }\left (-1\right )&=-3\\ \end {array} \]

Series expansion around \(x=-1\).

[[_2nd_order, _with_linear_symmetries]]

8.452

1878

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+1\right ) y^{\prime \prime }+4 y^{\prime } x +2 y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.142

1879

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime } x +2 \alpha y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.136

1880

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.782

1881

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-2 x^{3}+1\right ) y^{\prime \prime }-10 x^{2} y^{\prime }-8 y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.464

1882

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{3}+1\right ) y^{\prime \prime }+7 x^{2} y^{\prime }+9 y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.300

1883

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-2 x^{3}+1\right ) y^{\prime \prime }+6 x^{2} y^{\prime }+24 y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.180

1884

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{3}+1\right ) y^{\prime \prime }+15 x^{2} y^{\prime }-36 y x&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.202

1885

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{5}+1\right ) y^{\prime \prime }+14 x^{4} y^{\prime }+10 x^{3} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.290

1886

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+x^{2} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.812

1887

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+x^{6} y^{\prime }+7 y x^{5}&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.955

1888

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{8}+1\right ) y^{\prime \prime }-16 x^{7} y^{\prime }+72 x^{6} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.142

1889

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-x^{6}+1\right ) y^{\prime \prime }-12 x^{5} y^{\prime }-30 x^{4} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.202

1890

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+x^{5} y^{\prime }+6 x^{4} y&=0 \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.132

1891

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (1+3 x \right ) y^{\prime \prime }+y^{\prime } x +2 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=-3\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.198

1892

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+x +1\right ) y^{\prime \prime }+\left (2+8 x \right ) y^{\prime }+4 y&=0\\ y \left (0\right )&=-1\\ y^{\prime }\left (0\right )&=2\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.246

1893

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-2 x^{2}+1\right ) y^{\prime \prime }+\left (2-6 x \right ) y^{\prime }-2 y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

8.520

1894

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (3 x^{2}+x +1\right ) y^{\prime \prime }+\left (2+15 x \right ) y^{\prime }+12 y&=0\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.187

1895

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2+x \right ) y^{\prime \prime }+\left (x +1\right ) y^{\prime }+3 y&=0\\ y \left (0\right )&=4\\ y^{\prime }\left (0\right )&=3\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.164

1896

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}+3 x +3\right ) y^{\prime \prime }+\left (6+4 x \right ) y^{\prime }+2 y&=0\\ y \left (0\right )&=7\\ y^{\prime }\left (0\right )&=3\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.428

1897

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x +4\right ) y^{\prime \prime }+\left (2+x \right ) y^{\prime }+2 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=5\\ \end {array} \]

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.198

1898

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}-3 x +2\right ) y^{\prime \prime }-\left (4-6 x \right ) y^{\prime }+2 y&=0\\ y \left (1\right )&=1\\ y^{\prime }\left (1\right )&=-1\\ \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.439

1899

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2 x^{2}+3 x \right ) y^{\prime \prime }+10 \left (x +1\right ) y^{\prime }+8 y&=0\\ y \left (-1\right )&=1\\ y^{\prime }\left (-1\right )&=-1\\ \end {array} \]

Series expansion around \(x=-1\).

[[_2nd_order, _with_linear_symmetries]]

1.411

1900

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (x^{2}-x +1\right ) y^{\prime \prime }-\left (1-4 x \right ) y^{\prime }+2 y&=0\\ y \left (1\right )&=2\\ y^{\prime }\left (1\right )&=-1\\ \end {array} \]

Series expansion around \(x=1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

1.456