Module: Math

Defined in:: lib/small/math.rb

Class Method Summary collapse

.fact(n) ⇒ Object (also: factorial)
.fib(n) ⇒ Object (also: fibanocci)

Class Method Details

.fact(n) ⇒ `Object` Also known as: factorial



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# File 'lib/small/math.rb', line 4

def fact(n)
  (1..n).inject(1) {|r,i| r*i}
end

.fib(n) ⇒ `Object` Also known as: fibanocci



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# File 'lib/small/math.rb', line 9

def fib(n)
  n < 2 ? n : fib(n-1)+fib(n-2)
end