tadf	2009-06-07 22:46:56 +0900 (Sun, 07 Jun 2009)

  New Revision: 23644

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=23644

  Log:
    * lib/cmath.rb (log): avoided redundant expression.

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

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 23643)
+++ ChangeLog	(revision 23644)
@@ -1,3 +1,7 @@
+Sun Jun  7 22:44:20 2009  Tadayoshi Funaba  <tadf@d...>
+
+	* lib/cmath.rb (log): avoided redundant expression.
+
 Fri Jun  5 07:12:32 2009  Yukihiro Matsumoto  <matz@r...>
 
 	* lib/mkmf.rb (#link_command): should dup CONFTEST_C which is
Index: lib/cmath.rb
===================================================================
--- lib/cmath.rb	(revision 23643)
+++ lib/cmath.rb	(revision 23644)
@@ -38,8 +38,7 @@
     if z.real? and z >= 0 and (b.nil? or b >= 0)
       log!(*args)
     else
-      r, theta = z.polar
-      a = Complex(log!(r.abs), theta)
+      a = Complex(log!(z.abs), z.arg)
       if b
 	a /= log(b)
       end

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