Mercurial > repos > public > sbplib
view alignedTimestep.m @ 1013:eb441fbdf379 feature/advectionRV
Draft implementation of RungeKutta with exterior RV updates
- Draft class RungeKuttaExteriorRV which updates the residual using a BDF approximation of the derivtive outside of the RK stages.
- Draft class for BDF derivative
author | Vidar Stiernström <vidar.stiernstrom@it.uu.se> |
---|---|
date | Wed, 05 Dec 2018 15:04:44 +0100 |
parents | c71095442c57 |
children |
line wrap: on
line source
% Calcualtes the largest timestep smaller than k_max that gives an integer % number of timesteps to time T. % k_max -- largest allowable timestep % T -- time to align with % % Returns: % k -- calculated timestep % N -- number to of timestep to reach T function [k, N] = alignedTimestep(k_max, T) N = ceil(T/k_max); k = T/N; end