Mercurial > repos > public > sbplib
view +time/+rkparameters/rk4.m @ 882:14fee299ada2 feature/poroelastic
In Elastic2dVariable: Improve notation for borrowing constants. Update interface constant to match corrected derivation. Tests ok.
author | Martin Almquist <malmquist@stanford.edu> |
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date | Fri, 26 Oct 2018 16:35:23 -0700 |
parents | ee4cfb37534d |
children |
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function [a,b,c,s] = rk4() % Butcher tableau for classical RK$ s = 4; a = sparse(s,s); a(2,1) = 1/2; a(3,2) = 1/2; a(4,3) = 1; b = 1/6*[1; 2; 2; 1]; c = [0; 1/2; 1/2; 1]; end