method
ceil
ceil(*args)
public
Returns the smallest number greater than or equal to int with a precision of ndigits decimal digits (default: 0).
When the precision is negative, the returned value is an integer with at least ndigits.abs trailing zeros.
Returns self when ndigits is zero or positive.
1.ceil #=> 1 1.ceil(2) #=> 1 18.ceil(-1) #=> 20 (-18).ceil(-1) #=> -10