mrkn	2011-07-02 01:00:45 +0900 (Sat, 02 Jul 2011)

  New Revision: 32357

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=32357

  Log:
    * NEWS: describe a change of multiplication of Bignum.

  Modified files:
    trunk/ChangeLog
    trunk/NEWS

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 32356)
+++ ChangeLog	(revision 32357)
@@ -1,3 +1,7 @@
+Sat Jul  2 00:58:00 2011  Kenta Murata  <mrkn@m...>
+
+	* NEWS: describe a change of multiplication of Bignum.
+
 Fri Jul  1 18:52:31 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
 
 	* benchmark/bm_app_erb.rb: increase loop count. too short
Index: NEWS
===================================================================
--- NEWS	(revision 32356)
+++ NEWS	(revision 32357)
@@ -40,6 +40,11 @@
     * extended method:
       * Array#pack supports endian modifiers
 
+  * Bignum
+    * Multiplication algorithm for Bignums with a large number of digits over
+      150 BDIGITs is changed in order to reduce its calculation time.
+      Now such large Bignums are multiplied by using Toom-3 algorithm.
+
   * Encoding
     * new encodings:
       * CP950

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