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| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-07-12 14:13:46 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-07-12 14:13:46 +0000 |
| commit | 6967900fd910a767bbe7804ec4f21b027cedd735 (patch) | |
| tree | 30b7be7a49a2c78b48488a0ceb58fd1530000ce5 /lib | |
| parent | a395aca709c9a9ffa73b7f69071a540672005973 (diff) | |
| download | ruby-6967900fd910a767bbe7804ec4f21b027cedd735.tar.gz | |
math.c: Complex sqrt
* math.c (rb_math_sqrt): [EXPERIMENTAL] move Complex sqrt support
from mathn.rb.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mathn.rb | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/lib/mathn.rb b/lib/mathn.rb index d6f2da0210..9cb9401e37 100644 --- a/lib/mathn.rb +++ b/lib/mathn.rb @@ -103,14 +103,7 @@ module Math def sqrt(a) if a.kind_of?(Complex) - abs = sqrt(a.real*a.real + a.imag*a.imag) - x = sqrt((a.real + abs)/Rational(2)) - y = sqrt((-a.real + abs)/Rational(2)) - if a.imag >= 0 - Complex(x, y) - else - Complex(x, -y) - end + sqrt!(a) elsif a.respond_to?(:nan?) and a.nan? a elsif a >= 0 |