view stripeMatrixPeriodic.m @ 1019:f029b97dbc72 feature/advectionRV

Support upwind opSet in Utux2d
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 14 Dec 2018 18:30:27 +0100
parents bbf303c1f0cf
children
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% Creates a periodic discretization matrix of size n x n
%  with the values of val on the diagonals diag.
%   A = stripeMatrix(val,diags,n)
function A = stripeMatrixPeriodic(val,diags,n)

    D = ones(n,1)*val;
    A = spdiagsPeriodic(D,diags);
end