class SimpleCalcImpl

Public Instance Methods

fact(n) click to toggle source
# File examples/demo.rb, line 25
def fact(n)
  (2..n).reduce(1) { |m, e| m * e }
end
pos(arr, i) click to toggle source
# File examples/demo.rb, line 33
def pos(arr, i)
  arr.index(i)
end
sum(a) click to toggle source
# File examples/demo.rb, line 29
def sum(a)
  a.reduce(0, &:+)
end