Ruby | Math ldexp() function

Last Updated : 07 Jan, 2020

The ldexp() function in Ruby returns the value of fraction * (2^exponent) when fraction and exponent are given as parameters. The fraction is a float value and the exponent is an integer.

Syntax: Math.ldexp(fraction, exponent)

Parameter: The function takes two mandatory parameter fraction and exponent which specifies the fraction and exponent whose result is returned.

Return Value: The function returns the value of fraction and exponent.

Example 1:

# Ruby program for ldexp() function  
  
# Assigning values 
fraction1, exponent1 = Math.frexp(189)  
  
fraction2, exponent2 = Math.frexp(19)  
  
fraction3, exponent3 = Math.frexp(18)  
  
fraction4, exponent4 = Math.frexp(123)  
  
# Prints the value returned by ldexp()  
puts Math.ldexp(fraction1, exponent1) 
  
puts Math.ldexp(fraction2, exponent2) 
  
puts Math.ldexp(fraction3, exponent3) 
  
puts Math.ldexp(fraction4, exponent4)

Output:

Example 2:

# Ruby program for ldexp() function  
  
# Assigning values 
fraction1, exponent1 = Math.frexp(23)  
  
fraction2, exponent2 = Math.frexp(27)  
  
fraction3, exponent3 = Math.frexp(1092)  
  
fraction4, exponent4 = Math.frexp(1087)  
  
# Prints the value returned by ldexp()  
puts Math.ldexp(fraction1, exponent1) 
  
puts Math.ldexp(fraction2, exponent2) 
  
puts Math.ldexp(fraction3, exponent3) 
  
puts Math.ldexp(fraction4, exponent4)