diff options
| author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-11 14:30:47 +0000 |
|---|---|---|
| committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-11 14:30:47 +0000 |
| commit | 9b0b9ac237c60d34c9cd06538d1a133eed9f7130 (patch) | |
| tree | 2fa02528f508bc40c50d86e221b40f215650dae6 | |
| parent | c89bdea7c9ea3776e1a8994590dffd847c61f1df (diff) | |
| download | ruby-9b0b9ac237c60d34c9cd06538d1a133eed9f7130.tar.gz | |
* lib/cmath.rb (CMath.sqrt): use floating-point value. [ruby-core:31672] [Bug #3678]
* test/test_cmath.rb: added for testing lib/cmath.rb.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | lib/cmath.rb | 2 | ||||
| -rw-r--r-- | test/test_cmath.rb | 8 |
3 files changed, 16 insertions, 1 deletions
@@ -1,3 +1,10 @@ +Wed Aug 11 23:28:22 2010 Kenta Murata <mrkn@mrkn.jp> + + * lib/cmath.rb (CMath.sqrt): use floating-point value. + [ruby-core:31672] [Bug #3678] + + * test/test_cmath.rb: added for testing lib/cmath.rb. + Wed Aug 11 20:57:25 2010 Kazuhiro NISHIYAMA <zn@mbf.nifty.com> * NEWS: merge from branches/ruby_1_9_2, and move io/console. diff --git a/lib/cmath.rb b/lib/cmath.rb index 976f269299..3c94221f2c 100644 --- a/lib/cmath.rb +++ b/lib/cmath.rb @@ -79,7 +79,7 @@ module CMath else r = z.abs x = z.real - Complex(sqrt!((r + x) / 2), sqrt!((r - x) / 2)) + Complex(sqrt!((r + x) / 2.0), sqrt!((r - x) / 2.0)) end end end diff --git a/test/test_cmath.rb b/test/test_cmath.rb new file mode 100644 index 0000000000..46a357fab2 --- /dev/null +++ b/test/test_cmath.rb @@ -0,0 +1,8 @@ +require 'test/unit' +require 'cmath' + +class TestCMath < Test::Unit::TestCase + def test_sqrt + assert_equal CMath.sqrt(1.0.i), CMath.sqrt(1.i), '[ruby-core:31672]' + end +end |