From: jzakiya on 3 Jun 2010 12:52
Module 'Roots' provides two methods 'root' and 'roots'
which will find all the nth roots for all real, and complex
, numerical types.
View and download code here:
Place module file 'roots.rb' into 'lib' directory of ruby
Then from irb session, or a source code file, do:
#For extended math features also do: require 'mathn'
#Mixin 'Roots' into class Numeric
class Numeric; include Roots end
Can now find nth root(s) of all numerical types:
<floats>.root(s) n, opt
<integer>.root(s) n, opt
<rational>.root(s) n, opt
<complex>.root(s) n, opt
<bigdecimal>.root(s) n, opt
It would be nice for this capability to be considered for Ruby core.