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| author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-12-23 06:48:42 +0000 |
|---|---|---|
| committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-12-23 06:48:42 +0000 |
| commit | 916d811c9c3c471b6753baf8d6c0a6e42ae10f6f (patch) | |
| tree | 2280bd1cb6b31bdcb4dec8c891eff1026a2031be /lib | |
| parent | e271875db5b297269469dc4e81923709674c5fe5 (diff) | |
| download | ruby-916d811c9c3c471b6753baf8d6c0a6e42ae10f6f.tar.gz ruby-916d811c9c3c471b6753baf8d6c0a6e42ae10f6f.tar.xz ruby-916d811c9c3c471b6753baf8d6c0a6e42ae10f6f.zip | |
* lib/mathn.rb: Math.sqrt(NaN) should be NaN. [ruby-dev:37537]
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@20938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mathn.rb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/mathn.rb b/lib/mathn.rb index 48cb99f8c..0241f578e 100644 --- a/lib/mathn.rb +++ b/lib/mathn.rb @@ -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 |