From a817c0b0891ac321b5a95b5fe0f426388b41f282 Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 27 Jan 2010 13:49:58 +0000
Subject: [PATCH] * lib/matrix.rb (determinant): fix name error.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog     | 4 ++++
 lib/matrix.rb | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 18cdb865c0..dd4c3d35d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Jan 27 22:48:40 2010  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/matrix.rb (determinant): fix name error.
+
 Wed Jan 27 22:26:25 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* vm_eval.c (rb_backtrace): "circular require" warning was output to
diff --git a/lib/matrix.rb b/lib/matrix.rb
index c7ae64923f..358ac04416 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -681,8 +681,8 @@ class Matrix
         i = (k+1 ... size).find {|ii|
           a[ii][k] != 0
         }
-        return 0 if ii.nil?
-        a[ii], a[k] = a[k], a[ii]
+        return 0 if i.nil?
+        a[i], a[k] = a[k], a[i]
         akk = a[k][k]
         det *= -1
       end