1 files changed, 2 insertions, 3 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb
index 5d350bb8f8..95c8273522 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -770,7 +770,7 @@ class Matrix
     end
     rank = 0
     k = 0
-    loop do
+    begin
       if (akk = a[k][k]) == 0
         i = k
         exists = true
@@ -812,8 +812,7 @@ class Matrix
         end
       end
       rank += 1
-      break unless (k += 1) <= a_column_size - 1
-    end
+    end while (k += 1) <= a_column_size - 1
     return rank
   end