- mathn.rb

Object

gcd2(int)
click to toggle source

# File mathn.rb, line 19 def gcd2(int) a = self.abs b = int.abs a, b = b, a if a < b pd_a = a.prime_division pd_b = b.prime_division gcd = 1 for pair in pd_a as = pd_b.assoc(pair[0]) if as gcd *= as[0] ** [as[1], pair[1]].min end end return gcd end

prime_division()
click to toggle source

# File mathn.rb, line 45 def prime_division raise ZeroDivisionError if self == 0 ps = Prime.new value = self pv = [] for prime in ps count = 0 while (value1, mod = value.divmod(prime) mod) == 0 value = value1 count += 1 end if count != 0 pv.push [prime, count] end break if prime * prime >= value end if value > 1 pv.push [value, 1] end return pv end

Commenting is here to help enhance the documentation. For example, code samples, or clarification of the documentation.

If you have questions about Ruby or the documentation, please post to one of the Ruby mailing lists. You will get better, faster, help that way.

If you wish to post a correction of the docs, please do so, but also file bug report so that it can be corrected for the next release. Thank you.

If you want to help improve the Ruby documentation, please visit Documenting-ruby.org.