如何将数字舍入到最多 3 位小数？

Question

I am trying to round up 5.9999998 to 5.999.

But I have a problem, If I do round(number) it'll round it up to 6. How can I round a number like this to max 3 decimals?

Answer 1

You can use this:

number = 5.999999998
new_number = int(number * 1e3) / 1e3

Answer 2

Here is a short code.

x = 4/3

# round up to 3 decimal places
x = round(x, 3)

print(x)