Find the division remainder of a float number Python

Question

Why 0.03 divide by 0.01, the reminder is 0.01, not zero??

I try 0.3 % 0.1, the result is 0.1. For 3 % 1, the result is zero. Crazy.

You should go one step deeper. The number corresponding to input/display 0.01 is `"%.25f"%0.01 : '0.0100000000000000002081668'` and for 0.03 `"%.25f"%0.03 : '0.0299999999999999988897770'` — Lutz Lehmann, Feb 14 '23 at 15:08

score 1 · Answer 1 · edited Feb 14 '23 at 14:20

1

Use remainder can avoid this error, as shown below.

from math import remainder
remainder(0.03,0.01)

edited Feb 14 '23 at 14:20

Corralien

answered Feb 14 '23 at 14:08

wen wu

The result is `-1.734723475976807e-18` not really 0 :-) – Corralien Feb 14 '23 at 14:20

1 Answers1