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+Tue Jun 30 01:24:10 2009  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* lib/cmath.rb (log2, cbrt): added.  [experimental]
+
 Tue Jun 30 01:19:53 2009  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* complex.c (nucomp_expt): do not use rb_fexpt.