In python, we can use built-in function round() to format a float number to two decimal places. In this tutorial, we will use some examples to show you how to do.
Python round()
round(number[, ndigits])
Return number rounded to ndigits precision after the decimal point. If ndigits is omitted or is None, it returns the nearest integer to its input.
For example:
n = 2.3123 x1 = round(n) x2 = round(n, 1) x3 = round(n, 2) x4 = round(n, 3) print(x1, x2, x3, x4)
Run this code, you can find:
- ndigits = None, x1 = 2
- ndigits = 1, x1 = 2.3
- ndigits = 2, x1 = 2.32 (2 decimal places)
- ndigits = 3, x1 = 2.312 (3 decimal places)