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Created on 2020-03-21 08:43 by Mathias Talbo, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (2) | |||
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| msg364730 - (view) | Author: Mathias Talbo (Mathias Talbo) | Date: 2020-03-21 08:43 | |
An issue occurs when running the following code. import math math.fsum([0.1, 0.2]), math.fsum([0.1, 0.7]) This should output 0.3, 0.8 respectively. Instead, it output 0.30000000000000004, 0.7999999999999999 The very floating-point error it is trying to stop from occurring. Thank you for your time. |
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| msg364733 - (view) | Author: Karthikeyan Singaravelan (xtreak) *  |
Date: 2020-03-21 09:01 | |
This seems to be a similar case of https://docs.python.org/3/tutorial/floatingpoint.html. See also comment https://stackoverflow.com/questions/55534307/calculating-sum-of-float-numbers-using-math-fsum-showing-incorrect-values#comment97782231_55534307 . |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:28 | admin | set | github: 84211 |
| 2020-03-21 09:03:29 | serhiy.storchaka | set | status: open -> closed resolution: not a bug stage: resolved |
| 2020-03-21 09:01:45 | xtreak | set | nosy:
+ mark.dickinson, xtreak messages: + msg364733 |
| 2020-03-21 08:43:29 | Mathias Talbo | create | |