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view stripeMatrix.m @ 1022:234c1c02ea39 feature/advectionRV

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Add dirichlet bc for north and south boundary and handle cases where the wave speed changes in sign.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Mon, 07 Jan 2019 12:06:06 +0100
parents 5cb99f56f55e
children
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% Creates a matrix of size n,m with the values of val on the diagonals diag.
%   A = stripeMatrix(val,diags,n,m)
function A = stripeMatrix(val,diags,n,m)
    default_arg('m',n);

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