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-rw-r--r--lib/matrix.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb
index 17a0b50718..7f117ceecb 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -664,7 +664,7 @@ class Matrix
if (akk = a[k][k]) == 0
i = k
begin
- return 0 if (i += 1) > size
+ return 0 if (i += 1) >= size
end while a[i][k] == 0
a[i], a[k] = a[k], a[i]
akk = a[k][k]
@@ -719,7 +719,7 @@ class Matrix
i = k
exists = true
begin
- if (i += 1) > a_row_size - 1
+ if (i += 1) >= a_row_size
exists = false
break
end