Mercurial > repos > public > sbplib

view diags.m @ 984:0585a2ee7ee7 feature/timesteppers

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Inline the rk.rungekutta_4 function.
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 08 Jan 2019 12:19:33 +0100
parents 0b87863cb29c
children
line wrap: on
line source

function A = diags(B,d,m,n)
    assert(size(B,1) == m);

    A = repmat(B(:,1)*0, [1, n]);

    for i = 1:size(B,2)
        A(:,d(i)+ (1:m)) = A(:,d(i)+ (1:m)) + diag(B(:,i));
    end
end