Mercurial > repos > public > sbplib

view stripeMatrix.m @ 1082:a20fc67e9ac0 feature/laplace1dUpdate

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add d and n as acceptable boundary condition identifiers, which is consistent with eg LaplaceCurvilinear.
author Martin Almquist <malmquist@stanford.edu>
date Tue, 05 Mar 2019 11:26:42 -0800
parents 5cb99f56f55e
children
line wrap: on
line source

% 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