2.20.30 Basic Training in Mathematics. By R. Shankar. Plenum Press. NY. 1995

Column notations: A is ODE degree. B is Program Number of solutions generated. C is CAS Number of solutions generated.

Table 2.438: Basic Training in Mathematics. By R. Shankar. Plenum Press. NY. 1995

#

ODE

A

B

C

Program classification

CAS classification

Solved?

Verified?

time (sec)

5045

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

1

1

1

kovacic, second_order_linear_constant_coeff, second_order_ode_can_be_made_integrable

[[_2nd_order, _missing_x]]

0.794

5046

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

1

1

1

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.27

5047

\[ {}x^{\prime \prime }+42 x^{\prime }+x = 0 \]

i.c.

1

1

1

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _missing_x]]

0.707

5048

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

1

1

1

higher_order_linear_constant_coefficients_ODE

[[_high_order, _missing_x]]

0.588

5049

\[ {}x^{\prime \prime \prime }-3 x^{\prime \prime }-9 x^{\prime }-5 x = 0 \]

1

1

1

higher_order_linear_constant_coefficients_ODE

[[_3rd_order, _missing_x]]

0.274

5050

\[ {}x^{\prime \prime }+2 \gamma x^{\prime }+\omega _{0} x = F \cos \left (\omega t \right ) \]

1

1

1

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

0.78

5051

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

i.c.

1

1

1

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _with_linear_symmetries]]

1.086

5052

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

i.c.

1

1

1

kovacic, second_order_linear_constant_coeff, linear_second_order_ode_solved_by_an_integrating_factor

[[_2nd_order, _linear, _nonhomogeneous]]

1.141

5053

\[ {}y^{\prime \prime }+16 y = 16 \cos \left (4 x \right ) \]

i.c.

1

1

1

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.167

5054

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

i.c.

1

1

1

kovacic, second_order_linear_constant_coeff

[[_2nd_order, _linear, _nonhomogeneous]]

1.301

5055

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

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

0.553

5056

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

i.c.

1

1

1

exact, linear, differentialType, first_order_ode_lie_symmetry_lookup

[_linear]

1.41

5057

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

i.c.

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[[_linear, ‘class A‘]]

1.194

5058

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

i.c.

1

1

1

exact, linear, first_order_ode_lie_symmetry_lookup

[_linear]

1.306

5059

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

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.63

5060

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

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.593

5061

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

1

1

1

linear, homogeneousTypeD2, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

1.216

5062

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

1

1

1

exact, riccati, bernoulli, separable, first_order_ode_lie_symmetry_lookup

[_separable]

1.536

5063

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

1

3

3

bernoulli, first_order_ode_lie_symmetry_lookup

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

0.913

5064

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

1

1

1

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.64

5065

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

1

1

1

kovacic, exact linear second order ode, second_order_integrable_as_is, second_order_change_of_variable_on_y_method_1, second_order_change_of_variable_on_y_method_2

[[_2nd_order, _exact, _linear, _homogeneous]]

1.774

5066

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

1

1

1

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)]‘]]

1.366

5067

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

1

1

1

kovacic, second_order_bessel_ode, second_order_change_of_variable_on_x_method_1, second_order_change_of_variable_on_x_method_2

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

1.381

5068

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

1

1

1

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]]

1.588

5069

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

1

1

1

kovacic, second_order_bessel_ode

[[_Emden, _Fowler]]

0.718

5070

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

1

1

1

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.466

5071

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

1

1

1

kovacic, second_order_bessel_ode

[[_2nd_order, _with_linear_symmetries]]

0.899

5072

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

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.561

5073

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

1

1

1

linear, exactWithIntegrationFactor, first_order_ode_lie_symmetry_lookup

[_linear]

0.548

5074

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

1

0

1

unknown

[_Laguerre]

N/A

0.618