Rounding in Python

Python has a built-in round() function that takes two numeric arguments, number and ndigits, and returns a floating point number that is a rounded version of the number up to the specified number of decimals.

The default number of decimal is 0, meaning that the function will return the nearest integer.

# For integers
x= 12
print(round(x))
 
# For floating point
x= 12.3
print(round(22.7))  
 
# if the second parameter is present
 
# when the (ndigit+1)th digit is =5 
x=4.465
print(round(x, 2)) 
   
# when the (ndigit+1)th digit is >=5 
x=4.476
print(round(x, 2))   
   
# when the (ndigit+1)th digit is <5 
x=4.473
print(round(x, 2))