diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | lib/mathn.rb | 30 |
2 files changed, 35 insertions, 0 deletions
@@ -1,3 +1,8 @@ +Sun Sep 28 09:39:48 2008 Tadayoshi Funaba <tadf@dotrb.org> + + * lib/mathn.rb ({Fixnum,Bignum,Float}#**): may produce complex + value. + Sun Sep 28 09:05:53 2008 James Edward Gray II <jeg2@ruby-lang.org> * lib/csv/csv.rb: Worked around some minor encoding changes in Ruby diff --git a/lib/mathn.rb b/lib/mathn.rb index 401b162b4c..486d487296 100644 --- a/lib/mathn.rb +++ b/lib/mathn.rb @@ -61,6 +61,16 @@ class Fixnum remove_method :/ alias / quo + alias power! ** + + def ** (other) + if self < 0 && other.round != other + Complex(self, 0.0) ** other + else + power!(other) + end + end + def_canon *(instance_methods - Object.methods - [:canon]) end @@ -69,6 +79,16 @@ class Bignum remove_method :/ alias / quo + alias power! ** + + def ** (other) + if self < 0 && other.round != other + Complex(self, 0.0) ** other + else + power!(other) + end + end + def_canon *(instance_methods - Object.methods - [:canon]) end @@ -261,4 +281,14 @@ class Float def_canon *(instance_methods - Object.methods - [:canon]) + alias power! ** + + def ** (other) + if self < 0 && other.round != other + Complex(self, 0.0) ** other + else + power!(other) + end + end + end |