# Ruby code for cos() method
require 'cmath'
  
# Initializing values 
a = 0.3584
b = 2
  
# Printing result   
puts "cos value of a : #{CMath.cos(a)}\n\n" 
puts "cos value of b : #{CMath.cos(b)}\n\n"

cos value of a : 0.9364592642630104

cos value of b : -0.4161468365471424

# Ruby code for cos() method
require 'cmath'
  
# Initializing values  
a = 0
b = -0.247
  
# Printing result   
puts "cos value of a : #{CMath.cos(a)}\n\n"  
puts "cos value of b : #{CMath.cos(b)}\n\n"

cos value of a : 1.0

cos value of b : 0.9696502723724634