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-rw-r--r--ChangeLog4
-rw-r--r--lib/cmath.rb3
2 files changed, 6 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 580cc49..3af2e62 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Jun 28 21:16:48 2009 Tadayoshi Funaba <tadf@dotrb.org>
+
+ * lib/cmath.rb (sqrt): fixed an issue [ruby-list:45852].
+
Sun Jun 28 19:48:29 2009 Tadayoshi Funaba <tadf@dotrb.org>
* complex.c (nucomp_expt): some improvements.
diff --git a/lib/cmath.rb b/lib/cmath.rb
index d9e53f3..6b47e70 100644
--- a/lib/cmath.rb
+++ b/lib/cmath.rb
@@ -63,7 +63,8 @@ module CMath
sqrt!(z)
end
else
- if z.imag < 0
+ if z.imag < 0 ||
+ (z.imag == 0 && z.imag.to_s[0] == '-')
sqrt(z.conjugate).conjugate
else
r = z.abs