added #round method

lib/range_math.rb

@@ -35,6 +35,10 @@ class Range
   def to_i
     (self.begin.round..self.end.round)
   end
+
+  def round places=0
+    (self.begin.round(places)..self.end.round(places))
+  end
   
   def average
     (self.begin + self.end) / 2.0

range_math.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "range_math"
-  s.version = "0.6.1"
+  s.version = "0.7.0"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["muflax"]