The round() function rounds a value up or down. A decimal digit of . 5 has Python round towards an even integer. That makes it round up for positive values and down for negative ones.

Does int round up or down python?

You must first evaluate if the number is equal to its integer, which always rounds down. If the result is True, you return the number, if is not, return the integer(number) + 1. Math logic: If the number has decimal part: round_up - round_down == 1, always.

Does int round up or down?

INT rounds a number down using the Order rounding method. That is, it rounds a positive number down, towards zero, and a negative number down, away from zero. Therefore, it's easy to use INT to round a number up using the Math method.