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Ruby | Rational truncate() function
  • Last Updated : 06 Jan, 2020

The truncate() is an inbuilt function in Ruby returns rat truncated (toward zero) to a precision of ndigits decimal digits. ndigits by default is 0. It returns a rational when ndigits is positive, otherwise returns an integer.

Syntax: rat.truncate(ndigits)

Parameters: The function accepts a single parameter

Return Value: It returns rat truncated (toward zero) to a precision of ndigits decimal digits

Example 1:



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#Ruby program for truncate() method
  
#Initialize rational number
rat1 = Rational(-4, 3)
  
#Prints the rational number
           puts rat1.truncate()

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Output:

-1

Example 2:

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#Ruby program for truncate() method
  
#Initialize rational number
rat1 = Rational('123.456')
  
#Prints the rational number
           puts rat1.truncate(1)
               puts rat1.truncate(-1)

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Output:

617/5
120
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