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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-07-12 14:13:46 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-07-12 14:13:46 +0000 |
commit | 745a2aac690ef026ffd8a3c1ca82ddc61d6babe6 (patch) | |
tree | 30b7be7a49a2c78b48488a0ceb58fd1530000ce5 /lib | |
parent | 89ed4f41a3cc169893ee50765e7e996a63bbd2e9 (diff) | |
download | ruby-745a2aac690ef026ffd8a3c1ca82ddc61d6babe6.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 |