how to round number in python code example

Example 1: how to round in python

# To round a number in Python, use 'round()'
round(21.57) # Output: 22
round(5.473, 2) # Output: 5.47

Example 2: how to round a number down in python

>>> import math

>>> math.floor(3.9) # round down
3

Example 3: how to round a decimal to the nearest whole number in python

>>> import math

>>> math.ceil(1.2)
2

>>> math.ceil(2)
2

>>> math.ceil(-0.5)
0

Example 4: rounding numbers in python

>>> round(2.5)
2

Example 5: how to round a number in python

round(n, ndigits) # round(1.123456789,5) --> 1.12346