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Diffstat (limited to 'lib/overwrite.rb')
-rw-r--r-- | lib/overwrite.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/overwrite.rb b/lib/overwrite.rb index c92ad2b..2287a92 100644 --- a/lib/overwrite.rb +++ b/lib/overwrite.rb @@ -22,6 +22,14 @@ class Numeric end end +class Float + # round to significant digits + # http://stackoverflow.com/questions/8382619/how-to-round-a-float-to-a-specified-number-of-significant-digits-in-ruby + def signif(signs) + Float("%.#{signs}g" % self) + end +end + module Enumerable # @return [Array] only the duplicates of an enumerable def duplicates |