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2009-06-21merges r23658 from trunk into ruby_1_9_1.yugui
2008-12-13merges r20646 and r20647 from trunk into ruby_1_9_1.yugui
2008-10-18 * lib/cmath.rb (log2,cbrt,frexp,ldexp,hypot,erf,erfc,gamma,lgamma):tadf
2008-09-20 * complex.c: an instance method image has been removed andtadf
2008-09-16 * numeric.c: provides predicate real? instead of scalar?.tadf
2008-08-22 * complex.c (nucomp_div): now behaves as quo.tadf
2008-04-05 * lib/cmath.rb: new.tadf