Ruby | Numeric ceil() function

The ceil() is an inbuilt method in Ruby returns the smallest number which is greater than or equal to the given number by keeping a precision of n digits of the decimal part. 

Syntax: num.ceil(n digits)

Parameters: The function needs a number and n digits to which the precision of decimal digits is kept. In case no n digits is passed it takes 0 to be the default value. 

Return Value: It returns the smallest number which is greater than or equal to the given number by keeping a precision of n digits of the decimal part.

Example 1:  

Ruby

# Ruby program for ceil() method in Numeric

# Initialize a number
num1 = -19

num2 = -18.97

num3 = 18.98


# Prints ceil() of num
puts  num1.ceil()
puts  num2.ceil()
puts  num3.ceil()

Output: 

-19
-18
19

Example 2: 

Ruby

# Ruby program for ceil() method in Numeric

# Initialize a number
num1 = -19.897

num2 = -18.321

num3 = 190.23213


# Prints ceil() of num
puts  num1.ceil(1)
puts  num2.ceil(2)
puts  num3.ceil(3)

Output: 

-19.8
-18.32
190.233