Class: Integer

factorial	->	fact
	Common alias for factorial. require 'facet/integer/factorial' 2.fact #=> 2 3.fact #=> 6 4.fact #=> 24

Is an integer even?

  require 'facet/integer/even&odd'

  2.even?  #=> true
  3.even?  #=> false

Calculate the factorial of an integer.

  require 'facet/integer/factorial'

  2.factorial  #=> 2
  3.factorial  #=> 6
  3.factorial  #=> 24

Is an integer odd?

  require 'facet/integer/even&odd'

  2.odd?  #=> false
  3.odd?  #=> true

To properly support Float’s rounding methods, Integer must also be augmented.

To properly support Float’s rounding methods, Integer must also be augmented.

Like times but returns a collection of the yield results.

  require 'facet/integer/times_collect'

  a = 3.times_collect { |i| "#{i+1}" }
  a => [ "1", "2", "3" ]