drbrain	2011-06-01 09:26:27 +0900 (Wed, 01 Jun 2011)

  New Revision: 31881

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=31881

  Log:
    * lib/mathn.rb:  Improve documentation and attach it to Numeric.
      Modified from patch by Anil V.  [Ruby 1.9 - Bug #4762]

  Modified files:
    trunk/ChangeLog
    trunk/lib/mathn.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 31880)
+++ ChangeLog	(revision 31881)
@@ -1,3 +1,8 @@
+Wed Jun  1 09:26:05 2011  Eric Hodel  <drbrain@s...>
+
+	* lib/mathn.rb:  Improve documentation and attach it to Numeric.
+	  Modified from patch by Anil V.  [Ruby 1.9 - Bug #4762]
+
 Wed Jun  1 09:21:30 2011  Eric Hodel  <drbrain@s...>
 
 	* lib/prime.rb:  Indent examples enough to appear as code sections.
Index: lib/mathn.rb
===================================================================
--- lib/mathn.rb	(revision 31880)
+++ lib/mathn.rb	(revision 31881)
@@ -1,43 +1,45 @@
+#--
+# $Release Version: 0.5 $
+# $Revision: 1.1.1.1.4.1 $
+
 ##
 # = mathn
 #
-# mathn is a library for changing the way Ruby does math. If you need
+# mathn is a library for changing the way Ruby does math.  If you need
 # more precise rounding with multiple division or exponentiation
-# operations, then mathn is the right tool. It makes sense to use this
-# library if you can use it's late rounding. Mathn does not convert
-# Fixnums into Floats as long as you do not convert it yourself.
-# Instead of using Float as intermediate value it use Rational as
-# value representation.
+# operations, then mathn is the right tool.
 #
-# Example Fixnum with intermediate Float:
+# Without mathn:
 #
-#   20 / 9 * 3 * 14 / 7 * 3 / 2  # => 18
+#   3 / 2 => 1 # Integer
 #
-# Example: using mathn Fixnum/Rational:
+# With mathn:
 #
-#   require 'mathn'
-#   20 / 9 * 3 * 14 / 7 * 3 / 2  # => 20
+#   3 / 2 => 3/2 # Rational
 #
-# == Usage
+# mathn features late rounding and lacks truncation of intermediate results:
 #
-# To start using this library, simply:
+# Without mathn:
 #
-#   require "mathn"
+#   20 / 9 * 3 * 14 / 7 * 3 / 2 # => 18
 #
-# This will change the way division works for Fixnums, specifically
+# With mathn:
 #
-#   3 / 2
+#   20 / 9 * 3 * 14 / 7 * 3 / 2 # => 20
 #
-# will return +Rational+ (3/2) instead of the usual +Fixnum+ 1.
 #
+# When you require 'mathn' the libraries for Prime, CMath, Matrix and Vector
+# are also loaded.
+#
 # == Copyright
 #
-# Author: Keiju ISHITSUKA(SHL Japan Inc.)
-#
+# Author: Keiju ISHITSUKA (SHL Japan Inc.)
 #--
-# $Release Version: 0.5 $
-# $Revision: 1.1.1.1.4.1 $
+# class Numeric follows to make this documentation findable in a reasonable
+# location
 
+class Numeric; end
+
 require "cmath.rb"
 require "matrix.rb"
 require "prime.rb"

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