diff options
author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-06-13 05:36:59 +0000 |
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committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-06-13 05:36:59 +0000 |
commit | e6bea8978c9ec6b69a546f68416dd87dacac8b2a (patch) | |
tree | a32b807a7dd1fee93317528a5a4834a74fe135c0 /lib/cmath.rb | |
parent | da923d2b1f6de3ba2947c83cf89c6affd85cc0d9 (diff) |
* lib/cmath.rb (CMath.cbrt): returns the principal value of the cube
root of the argument. fix #3676
* test/test_cmath.rb (test_cbrt_returns_principal_value_of_cube_root):
test for the above change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32047 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/cmath.rb')
-rw-r--r-- | lib/cmath.rb | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/cmath.rb b/lib/cmath.rb index 24a0e70f9c..4751f6c4a1 100644 --- a/lib/cmath.rb +++ b/lib/cmath.rb @@ -122,13 +122,9 @@ module CMath end ## - # returns the cube root of +z+ + # returns the principal value of the cube root of +z+ def cbrt(z) - if z.real? - cbrt!(z) - else - Complex(z) ** (1.0/3) - end + Complex(z) ** (1.0/3) end ## |