why 1-0.4 = 0.6 vs 1 - 1.4 = -0.399999999999 and 0.1 - 0.5 = -0.4 vs 0.2 - 0.6 = -0.3999999 How to make the calculation consistent? What the best way to deal with that to be able to compare (0.2 - 0.6) == (0.1 - 0.5) to get true, not false as it is right now Julia ver 1.11.5

Why 1-0.4 = 0.6 vs 1 - 1.4 = -0.399999999999

giordano May 19, 2025, 2:37pm 2

5 Likes

Topic		Replies	Views
Float representation of the same number may not be equal? General Usage question	10	891	November 19, 2019
PSA: floating-point arithmetic Offtopic	14	7528	July 8, 2021
Approx with a weird behaviour General Usage	1	359	January 16, 2019
Float comparison error General Usage	4	1208	June 19, 2018
Why do simple arithmetics cause weird Precision bugs General Usage	10	307	September 10, 2024