diff options
Diffstat (limited to 'lib/cmath.rb')
| -rw-r--r-- | lib/cmath.rb | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/cmath.rb b/lib/cmath.rb index d9e53f361a..6b47e70a15 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 |