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fix error message in rot90

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1 parent 0fa3009 commit 0b0e3114a46d523dd23d4112e39981077ab509dd @masa16 committed Sep 20, 2012
Showing with 1 addition and 1 deletion.
  1. +1 −1 lib/narray_ext.rb
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@@ -230,7 +230,7 @@ def reverse(*ranks)
def rot90(n_times=1)
if self.rank < 2
- raise "must be >2 dimensional array"
+ raise "must be >= 2 dimensional array"
end
case n_times%4
when 0

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