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* lib/mathn.rb: Math.sqrt(NaN) should be NaN. [ruby-dev:37537]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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yugui 2008-12-23 06:48:42 +00:00
parent 1bd7257dc8
commit 99825ae914
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ChangeLog
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@ -1,3 +1,7 @@
Tue Dec 23 15:46:43 2008 Yuki Sonoda (Yugui) <yugui@yugui.jp>
* lib/mathn.rb: Math.sqrt(NaN) should be NaN. [ruby-dev:37537]
Tue Dec 23 15:46:47 2008 Eric Hodel <drbrain@segment7.net>
* gem_prelude.rb: Match full RubyGems behavior when a gem can't be
found.

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lib/mathn.rb
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@ -134,6 +134,8 @@ module Math
else
Complex(x, -y)
end
elsif a.respond_to?(:nan?) and a.nan?
a
elsif a >= 0
rsqrt(a)
else