Ruby | Rational round() function
The round() is an inbuilt function in Ruby returns rational rounded to the nearest value with a precision of ndigits decimal digits. ndigits by default is 0. It returns a rational when ndigits is positive, otherwise returns an integer.
Syntax: rational.round(ndigits)
Parameters: The function accepts a single parameter
Return Value: It returns rational rounded to the nearest value with a precision of ndigits decimal digits.
Example 1:
# Ruby program for round() method # Initialize rational number rat1 = Rational(-4, 3) # Prints the rational number puts rat1.round() |
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Output:
-1
Example 2:
# Ruby program for round() method # Initialize rational number rat1 = Rational('123.456') # Prints the rational number puts rat1.round(1) puts rat1.round(-1) |
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Output:
247/2 120
