Mercurial > hg > ishara

diff general/numerical/issym.m @ 4:e44f49929e56

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Adding reorganised general toolbox, now in several subdirectories.
author samer
date Sat, 12 Jan 2013 19:21:22 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/general/numerical/issym.m	Sat Jan 12 19:21:22 2013 +0000
@@ -0,0 +1,11 @@
+function z=issym(x,th)
+% issym - Test if matrix is symmetric with optional tolerance
+%
+% issym :: [[N,N]] -> bool.
+% issym :: [[N,N]], nonneg -> bool.
+
+if nargin<2,
+	z=all(all(x==x'));
+else
+	z=all(all(abs(x-x')<=th));
+end