How to round to 2 decimals with Python?
Using str.format()'s syntax to display answer with two decimal places (without altering the underlying value of answer):
def printC(answer): print("\nYour Celsius value is {:0.2f}ºC.\n".format(answer))Where:
:introduces the format spec0enables sign-aware zero-padding for numeric types.2sets the precision to2fdisplays the number as a fixed-point number
Most answers suggested round or format. round sometimes rounds up, and in my case I needed the value of my variable to be rounded down and not just displayed as such.
round(2.357, 2) # -> 2.36I found the answer here: How do I round a floating point number up to a certain decimal place?
import mathv = 2.357print(math.ceil(v*100)/100) # -> 2.36print(math.floor(v*100)/100) # -> 2.35or:
from math import floor, ceildef roundDown(n, d=8): d = int('1' + ('0' * d)) return floor(n * d) / ddef roundUp(n, d=8): d = int('1' + ('0' * d)) return ceil(n * d) / d