2.16.18 Problems 1701 to 1800

Table 2.52: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

1701

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

riccati

[_Riccati]

0.775

1702

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

riccati

[_Riccati]

0.78

1703

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

unknown

[‘y=_G(x,y’)‘]

N/A

1.07

1704

\[ {}y^{\prime } = y^{3}+{\mathrm e}^{-5 t} \]

abelFirstKind

[_Abel]

N/A

1.05

1705

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

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class C‘], _dAlembert]

1.563

1706

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

unknown

[‘y=_G(x,y’)‘]

N/A

1.27

1707

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

i.c.

unknown

[‘y=_G(x,y’)‘]

N/A

1.707

1708

\[ {}y^{\prime } = \frac {\left (1+\cos \left (4 t \right )\right ) y}{4}-\frac {\left (1-\cos \left (4 t \right )\right ) y^{2}}{800} \]

riccati, bernoulli, first_order_ode_lie_symmetry_lookup

[_Bernoulli]

14.143

1709

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

riccati

[[_Riccati, _special]]

1.753

1710

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

exact, linear, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.227

1711

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

exact, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.516

1712

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

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

3.391

1713

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

i.c.

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

4.299

1714

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

kovacic, exact linear second order ode, second_order_integrable_as_is

[[_2nd_order, _exact, _linear, _homogeneous]]

2.205

1715

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

i.c.

kovacic, exact linear second order ode, second_order_integrable_as_is

[[_2nd_order, _exact, _linear, _homogeneous]]

2.416

1716

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

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

1.351

1717

\[ {}6 y^{\prime \prime }-7 y^{\prime }+y = 0 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.434

1718

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.503

1719

\[ {}3 y^{\prime \prime }+6 y^{\prime }+3 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.544

1720

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.84

1721

\[ {}2 y^{\prime \prime }+y^{\prime }-10 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.158

1722

\[ {}5 y^{\prime \prime }+5 y^{\prime }-y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.638

1723

\[ {}y^{\prime \prime }-6 y^{\prime }+y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.933

1724

\[ {}y^{\prime \prime }+5 y^{\prime }+6 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.744

1725

\[ {}t^{2} y^{\prime \prime }+\alpha t y^{\prime }+\beta y = 0 \]

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

3.751

1726

\[ {}t^{2} y^{\prime \prime }+5 t y^{\prime }-5 y = 0 \]

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

2.38

1727

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

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

6.679

1728

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

2.17

1729

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.845

1730

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.901

1731

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.82

1732

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.888

1733

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

2.162

1734

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

1.177

1735

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

4.005

1736

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

3.797

1737

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

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

2.204

1738

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

2.766

1739

\[ {}y^{\prime \prime }-6 y^{\prime }+9 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.486

1740

\[ {}4 y^{\prime \prime }-12 y^{\prime }+9 y = 0 \]

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.532

1741

\[ {}9 y^{\prime \prime }+6 y^{\prime }+y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

1.116

1742

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

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

0.977

1743

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

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

1.093

1744

\[ {}9 y^{\prime \prime }-12 y^{\prime }+4 y = 0 \]

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _missing_x]]

1.296

1745

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

kovacic, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _with_linear_symmetries]]

2.399

1746

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

kovacic, second_order_change_of_variable_on_y_method_1, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _with_linear_symmetries]]

1.315

1747

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

kovacic, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[_Gegenbauer]

2.775

1748

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

kovacic, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _with_linear_symmetries]]

2.386

1749

\[ {}\left (-t^{2}+1\right ) y^{\prime \prime }-2 t y^{\prime }+6 y = 0 \]

kovacic

[_Gegenbauer]

1.505

1750

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

kovacic, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _with_linear_symmetries]]

2.343

1751

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

kovacic, second_order_bessel_ode, second_order_change_of_variable_on_y_method_1

[[_2nd_order, _with_linear_symmetries]]

1.497

1752

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

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

3.682

1753

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

2.765

1754

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.048

1755

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

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _linear, _nonhomogeneous]]

0.849

1756

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

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

0.963

1757

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = t \,{\mathrm e}^{3 t}+1 \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

0.8

1758

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.539

1759

\[ {}y^{\prime \prime }+4 y^{\prime }+4 y = t^{\frac {5}{2}} {\mathrm e}^{-2 t} \]

i.c.

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _linear, _nonhomogeneous]]

1.86

1760

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = \sqrt {t +1} \]

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

2.749

1761

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

i.c.

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

2.052

1762

\[ {}y^{\prime \prime }+\frac {y t^{2}}{4} = f \cos \left (t \right ) \]

second_order_bessel_ode

[[_2nd_order, _linear, _nonhomogeneous]]

4.624

1763

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

kovacic, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_2nd_order, _with_linear_symmetries]]

3.929

1764

\[ {}m y^{\prime \prime }+c y^{\prime }+k y = F_{0} \cos \left (\omega t \right ) \]

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.87

1765

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

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

0.953

1766

\[ {}y^{\prime \prime }-t y = 0 \]

second order series method. Ordinary point, second order series method. Taylor series method

[[_Emden, _Fowler]]

0.784

1767

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

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

1.174

1768

\[ {}y^{\prime \prime }-t^{3} y = 0 \]

second order series method. Ordinary point, second order series method. Taylor series method

[[_Emden, _Fowler]]

1.09

1769

\[ {}t \left (2-t \right ) y^{\prime \prime }-6 \left (-1+t \right ) y^{\prime }-4 y = 0 \]

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

4.537

1770

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_Emden, _Fowler]]

3.493

1771

\[ {}y^{\prime \prime }-t^{3} y = 0 \]

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_Emden, _Fowler]]

2.54

1772

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

5.217

1773

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

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

1.348

1774

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

second order series method. Ordinary point, second order series method. Taylor series method

[_Gegenbauer]

1.877

1775

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

second order series method. Ordinary point, second order series method. Taylor series method

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

1.632

1776

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

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

1.387

1777

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

1.655

1778

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _exact, _linear, _homogeneous]]

3.183

1779

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

3.14

1780

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

3.386

1781

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

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

3.13

1782

\[ {}y^{\prime \prime }+y^{\prime }+{\mathrm e}^{-t} y = 0 \]

i.c.

second order series method. Ordinary point, second order series method. Taylor series method

[[_2nd_order, _with_linear_symmetries]]

3.431

1783

\[ {}t^{2} y^{\prime \prime }-5 t y^{\prime }+9 y = 0 \]

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

2.365

1784

\[ {}t^{2} y^{\prime \prime }+5 t y^{\prime }-5 y = 0 \]

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

2.343

1785

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

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

3.304

1786

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

kovacic, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_1, linear_second_order_ode_solved_by_an_integrating_factor, second_order_ode_non_constant_coeff_transformation_on_B

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

1.893

1787

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

kovacic, second_order_euler_ode, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

3.58

1788

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2, second_order_ode_non_constant_coeff_transformation_on_B

[[_Emden, _Fowler]]

2.729

1789

\[ {}\left (t -2\right )^{2} y^{\prime \prime }+5 \left (t -2\right ) y^{\prime }+4 y = 0 \]

kovacic, second_order_change_of_variable_on_x_method_2

[[_2nd_order, _with_linear_symmetries]]

1.547

1790

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

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

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

2.097

1791

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

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

[[_Emden, _Fowler]]

4.398

1792

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

i.c.

kovacic, second_order_euler_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2, second_order_change_of_variable_on_y_method_2

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

3.281

1793

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

second order series method. Regular singular point. Difference is integer

[[_2nd_order, _with_linear_symmetries]]

5.911

1794

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

second order series method. Irregular singular point

[[_2nd_order, _with_linear_symmetries]]

N/A

1.993

1795

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

second order series method. Regular singular point. Complex roots

[[_2nd_order, _with_linear_symmetries]]

22.459

1796

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

second order series method. Regular singular point. Repeated root

[[_2nd_order, _with_linear_symmetries]]

2.695

1797

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

second order series method. Irregular singular point

[[_2nd_order, _with_linear_symmetries]]

N/A

28.076

1798

\[ {}t^{3} y^{\prime \prime }+\sin \left (t^{3}\right ) y^{\prime }+t y = 0 \]

second order series method. Regular singular point. Complex roots

[[_2nd_order, _with_linear_symmetries]]

10.746

1799

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

second order series method. Regular singular point. Difference not integer

[[_2nd_order, _with_linear_symmetries]]

3.634

1800

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

second order series method. Regular singular point. Difference not integer

[_Laguerre]

2.509