# Ruby program for to_d function 
   
require 'bigdecimal'
require 'bigdecimal/util'
   
# Initializing the number
num1 = 5
num2 = 10 ** 100 
num3 = 1678 
num4 = 189790
    
# Prints the int as big-decimal 
puts num1.to_d
puts num2.to_d
puts num3.to_d
puts num4.to_d

 0.5e1
0.1e101
0.1678e4
0.18979e6

# Ruby program for to_d function 
   
require 'bigdecimal'
require 'bigdecimal/util'
   
# Initializing the number
num1 = 5
num2 = 19**18
num3 = 2**45
num4 = 888
    
# Prints the int as big-decimal 
puts num1.to_d
puts num2.to_d
puts num3.to_d
puts num4.to_d

0.5e1
0.104127350297911241532841e24
0.35184372088832e14
0.888e3