Mercurial > repos > public > sbplib

changeset 419:1adfc42bbc1a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merged in feature/diags (pull request #7) Add full matrix equivalent of spdiags
author Jonatan Werpers <jonatan.werpers@it.uu.se>
date Tue, 07 Feb 2017 14:37:55 +0000
parents 16a76db8c279 (current diff) 1de9971afe6c (diff)
children b6a5dc423990
files
diffstat 1 files changed, 9 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/diags.m	Tue Feb 07 14:37:55 2017 +0000
@@ -0,0 +1,9 @@
+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