module NewCalculator

div(a = 1, b = 1) click to toggle source

# File lib/new_calculator.rb, line 16
def self.div(a = 1, b = 1)
  a.to_f / b.to_f
end

factorial(a = 1) click to toggle source

# File lib/new_calculator.rb, line 20
def self.factorial(a = 1)
  (1..a).inject(:*)
end

mult(a = 1, b = 1) click to toggle source

# File lib/new_calculator.rb, line 12
def self.mult(a = 1, b = 1)
  a.to_f * b.to_f
end

subtr(a = 0, b = 0) click to toggle source

# File lib/new_calculator.rb, line 8
def self.subtr(a = 0, b = 0)
  a.to_f - b.to_f
end

sum(a = 0, b = 0) click to toggle source

# File lib/new_calculator.rb, line 4
def self.sum(a = 0, b = 0)
  a.to_f + b.to_f
end