summaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
authormarcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-09-16 21:25:53 +0000
committermarcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-09-16 21:25:53 +0000
commit5a52a755c5ebffe8e6b4b7461a5d2d27c57c8dea (patch)
tree046ee2624b60128ba6bb372f1be79aa81d25ea00 /lib
parent433cd0e0828b2aba1871ea7a67f99faedb82b6b1 (diff)
* lib/matrix.rb (Matrix#rank): Two bug fixes. One made Matrix[[0,0],[0,0],[1,0]].rank raise a NoMethodError while the other one had Matrix[[0,1],[0,0],[1,0]].rank raise a TypeError.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@24972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
-rw-r--r--lib/matrix.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb
index a86440dbba..93ae3a9909 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -701,14 +701,14 @@ class Matrix
rank = 0
a_column_size.times do |k|
if (akk = a[k][k]) == 0
- i = (k+1 ... a_column_size).find {|i|
+ i = (k+1 ... a_row_size).find {|i|
a[i][k] != 0
}
if i
a[i], a[k] = a[k], a[i]
akk = a[k][k]
else
- i = (k+1 ... a_row_size).find {|i|
+ i = (k+1 ... a_column_size).find {|i|
a[k][i] != 0
}
next if i.nil?