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view +time/+rkparameters/rk4.m @ 1334:df8c71b80c33 feature/D2_boundary_opt

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Use the logic grid associated with a CurvilinearGrid instead of creating a new one
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Sat, 07 May 2022 10:40:47 +0200
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