From: "mrkn (Kenta Murata)" Date: 2013-07-01T15:38:26+09:00 Subject: [ruby-core:55726] [ruby-trunk - Bug #6862] BigMath.exp negative exponent Issue #6862 has been updated by mrkn (Kenta Murata). phasis68 (Heesob Park) wrote: > This issue was solved with changeset r41623. > BTW, my patch is same to Garth Snyder's and it is 11 months old. I'm sorry I missed this issue and your patch. I added your name in ChangeLog at r41723. ---------------------------------------- Bug #6862: BigMath.exp negative exponent https://bugs.ruby-lang.org/issues/6862#change-40225 Author: karatedog (F��ldes L��szl��) Status: Closed Priority: Normal Assignee: mrkn (Kenta Murata) Category: Target version: next minor ruby -v: ruby 1.9.3p260 (2012-08-09 revision 36669) [i686-linux] Backport: 1.9.3: REQUIRED, 2.0.0: REQUIRED Ruby 1.9.3 BigMath.exp accepts Fixnum for exponent but silently treats negative exponents as positive: 1.9.3p260 :009 > BigMath.exp(3, 10) => # 1.9.3p260 :010 > BigMath.exp(-3, 10) => # Converting the exponent parameter to BigDecimal solves the problem: 1.9.3p260 :011 > BigMath.exp(BigDecimal(-3), 10) => # -- http://bugs.ruby-lang.org/