view stripeMatrixPeriodic.m @ 1151:03ecf18d035f feature/rv

Set RV artificial viscosity to zero around borders of the domain
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Mon, 18 Feb 2019 09:00:00 +0100
parents bbf303c1f0cf
children
line wrap: on
line source

% 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