mame	2010-07-21 12:43:43 +0900 (Wed, 21 Jul 2010)

  New Revision: 28698

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=28698

  Log:
    * lib/cmath.rb (CMath#cbrt): cbrt should accept a negative real
      numbers.  [ruby-core:31234]

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

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 28697)
+++ ChangeLog	(revision 28698)
@@ -1,3 +1,8 @@
+Wed Jul 21 12:39:15 2010  Yusuke Endoh  <mame@t...>
+
+	* lib/cmath.rb (CMath#cbrt): cbrt should accept a negative real
+	  numbers.  [ruby-core:31234]
+
 Wed Jul 21 12:31:30 2010  Marc-Andre Lafortune  <ruby-core@m...>
 
 	* lib/uri/common.rb: Have URI() and URI.join accept URI objects in
@@ -15,6 +20,7 @@
 Tue Jul 20 11:27:18 2010  Evan Phoenix  <evan@r...>
 
 	* gem_prelude.rb: Pull in rubygem's custom require
+
 	* lib/rubygems.rb: Handle always having custom require available
 
 Tue Jul 20 18:39:18 2010  Nobuyoshi Nakada  <nobu@r...>
Index: lib/cmath.rb
===================================================================
--- lib/cmath.rb	(revision 28697)
+++ lib/cmath.rb	(revision 28698)
@@ -85,7 +85,7 @@
   end
 
   def cbrt(z)
-    if z.real? and z >= 0
+    if z.real?
       cbrt!(z)
     else
       Complex(z) ** (1.0/3)

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