Ruby | Rational ceil() function
The ceil() is an inbuilt function in Ruby returns the smallest number greater than or equal to rat 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: rat.ceil(ndigits)
Parameters: The function accepts a number ndigits which specifies the number of digits to be rounded off. If ndigits is not given then, default value is taken to be zero.
Return Value: It returns the smallest number greater than or equal to rat with a precision of ndigits
Example 1:
# Ruby program for ceil() method # Initialize rational number rat1 = Rational(- 4 , 3 ) # Prints the rational number puts rat1.ceil() |
Output:
-1
Example 2:
# Ruby program for ceil() method # Initialize rational number rat1 = Rational( '123.456' ) # Prints the rational number puts rat1.ceil( 1 ) puts rat1.ceil(- 1 ) |
Output:
247/2 130
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