Trait integrators::GeneralIntegrator

source · [−]
pub trait GeneralIntegrator<F: Float> {
    fn update(&self, t: F, x: &[F]) -> Result<Vec<F>>;

    fn integrate(
        &self, 
        x: &[F], 
        t_0: F, 
        h: F, 
        n: usize, 
        integrator: Integrators
    ) -> Result<Result<F>> { ... }

    fn prepare(&self, x: Vec<F>, n: usize, _: &Token) -> Result<F> { ... }

    fn runge_kutta_4th(
        &self, 
        t_0: F, 
        h: F, 
        n: usize, 
        result: &mut Result<F>, 
        _: &Token
    ) -> Result<()> { ... }
}
Expand description

A general integrator for a system of 1st-order ODEs

Required methods

Update the current state as defined by a system of 1st-order ODEs, return the result

Arguments:

  • t — Current time moment;
  • x — Current state of the system.

Provided methods

Integrate the system of 1st-order ODEs

Arguments:

  • x — Vector of initial values;
  • t_0 — Initial value of time;
  • h — Time step;
  • n — Number of iterations;
  • integrator — Integration method.

Prepare a matrix for the result and put the initial values in the first column

Arguments:

  • x — Vector of initial values;
  • n — Number of iterations;
  • token — Private token.

Integrate the system using the 4th-order Runge-Kutta method

Arguments:

  • t_0 — Initial value of time;
  • h — Time step;
  • n — Number of iterations;
  • result — Result matrix;
  • token — Private token.

Implementors