Struct RK23Coefficients 

pub struct RK23Coefficients<N: ComplexField>(/* private fields */);

Trait Implementations

impl<N: ComplexField> RungeKuttaCoefficients<4> for RK23Coefficients<N>

type RealField = <N as ComplexField>::RealField

The real field associated with the solver’s Field.

fn t_coefficients() -> Option<BSVector<Self::RealField, 4>>

Returns a vec of coefficients to multiply the time step by when getting intermediate results. Upper-left portion of Butcher Tableaux

fn k_coefficients() -> Option<BSMatrix<Self::RealField, 4, 4>>

Returns the coefficients to use on the k_i’s when finding another k_i. Upper-right portion of the Butcher Tableaux. Should be an NxN-1 matrix, where N is the order of the Runge-Kutta Method (Or order+1 for adaptive methods)

fn avg_coefficients() -> Option<BSVector<Self::RealField, 4>>

Coefficients to use when calculating the final step to take. These are the weights of the weighted average of k_i’s. Bottom portion of the Butcher Tableaux. For adaptive methods, this is the first row of the bottom portion.

fn error_coefficients() -> Option<BSVector<Self::RealField, 4>>

Coefficients to use on the k_i’s to find the error between the two orders of Runge-Kutta methods. In the Butcher Tableaux, this is the first row of the bottom portion minus the second row.