pub fn wave_equation_step(
u: &[f64],
u_prev: &[f64],
dx: f64,
dt: f64,
c: f64,
) -> Vec<f64>Expand description
One explicit time step for the 1D wave equation ∂²u/∂t² = c² ∂²u/∂x².
Requires the solution at times t (u) and t-dt (u_prev).