Function rkf45::rkf45_adaptive

source · 
pub fn rkf45_adaptive(
    y: &mut [f64],
    dydt: &impl Fn(f64, &[f64]) -> Vec<f64>,
    options: &AdaptiveOdeSolverOptions,
) -> Result<Vec<f64>, Error>
Expand description

Solves an initial value problem using RKF45 with adaptive time-stepping.

The method of error control and time step refinement are described in Press and Teukolsky’s Adaptive Stepsize Runge-Kutta Integration, Computers in Physics 6, 188 (1992).

Args:

  • y: Slice containing the initial value of the solution. This will be updated in-place.
  • dydt: Function that evaluates the time derivative of y.
  • options: Specifies parameters for the solver.

Returns:

  • Vector estimating total elementwise numerical error incurred by integration.