marcandre	2009-09-16 13:39:51 +0900 (Wed, 16 Sep 2009)

  New Revision: 24949

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=24949

  Log:
    * lib/matrix.rb (determinant): Bug fix where determinant failed on some matrices [ruby-core:23597]

  Modified files:
    trunk/ChangeLog
    trunk/lib/matrix.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 24948)
+++ ChangeLog	(revision 24949)
@@ -1,3 +1,8 @@
+Wed Sep 16 13:39:10 2009  Marc-Andre Lafortune  <ruby-core@m...>
+
+	* lib/matrix.rb (determinant): Bug fix where determinant failed on
+	  some matrices [ruby-core:23597]
+
 Wed Sep 16 13:30:20 2009  Marc-Andre Lafortune  <ruby-core@m...>
 
 	* lib/matrix.rb:  trivial optimizations
Index: lib/matrix.rb
===================================================================
--- lib/matrix.rb	(revision 24948)
+++ lib/matrix.rb	(revision 24949)
@@ -669,7 +669,7 @@
       if (akk = a[k][k]) == 0
         i = k
         loop do
-          return 0 if (ii += 1) > size
+          return 0 if (i += 1) > size
           break unless a[i][k] == 0
         end
         a[i], a[k] = a[k], a[i]

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