Struct DoPri5Interpolant 

pub struct DoPri5Interpolant;

DoPri5 dense output interpolation.

The free interpolant is a 4th-order polynomial constructed from the stage values. The coefficients are stored as: [d0, d1, d2, d3, d4] for each dimension, where the polynomial is:

y(t0 + theta*h) = y0 + h * theta * (d0 + theta*(d1 + theta*(d2 + theta*(d3 + theta*d4))))

Implementations

impl DoPri5Interpolant

pub fn build_coefficients<S: Scalar>( y0: &[S], y1: &[S], k: &[S], h: S, dim: usize, ) -> Vec<S>

Build the dense output coefficients from DoPri5 stage values.

Arguments

• y0 - State at start of step
• y1 - State at end of step
• k - Stage derivatives (k1, k2, …, k7) as a flat array
• h - Step size
• dim - Dimension of the system

Returns the coefficients for the dense segment.

Trait Implementations

impl Clone for DoPri5Interpolant

fn clone(&self) -> DoPri5Interpolant

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DoPri5Interpolant

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for DoPri5Interpolant

fn default() -> DoPri5Interpolant

Returns the “default value” for a type.

impl<S: Scalar> DenseInterpolant<S> for DoPri5Interpolant

fn interpolate(&self, segment: &DenseSegment<S>, t: S, y_out: &mut [S])

Evaluate the solution at time t using the dense segment.

fn interpolate_derivative( &self, segment: &DenseSegment<S>, t: S, dydt_out: &mut [S], )

Evaluate the derivative at time t using the dense segment.