This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author Mathias Talbo
Recipients Mathias Talbo
Date 2020-03-21.08:43:29
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1584780209.99.0.70577499312.issue40030@roundup.psfhosted.org>
In-reply-to
Content
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.
History
Date User Action Args
2020-03-21 08:43:30Mathias Talbosetrecipients: + Mathias Talbo
2020-03-21 08:43:29Mathias Talbosetmessageid: <1584780209.99.0.70577499312.issue40030@roundup.psfhosted.org>
2020-03-21 08:43:29Mathias Talbolinkissue40030 messages
2020-03-21 08:43:29Mathias Talbocreate