From: Arthur Miller <arthur.miller@live.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: What is 0.01 here not 0.01 here 0.009999999999999?
Date: Sat, 03 Apr 2021 06:49:42 +0200 [thread overview]
Message-ID: <AM9PR09MB497778F1DCAD6E4F193AC52A96799@AM9PR09MB4977.eurprd09.prod.outlook.com> (raw)
In-Reply-To: <YGdPX/Y2Zg/T6Qtv@protected.localdomain> (Jean Louis's message of "Fri, 2 Apr 2021 20:07:43 +0300")
Jean Louis <bugs@gnu.support> writes:
> * Eli Zaretskii <eliz@gnu.org> [2021-04-02 17:03]:
>> Suggested reading:
>>
>> https://www.itu.dk/~sestoft/bachelor/IEEE754_article.pdf
>
> Thank you, I will read. From:
> https://en.wikipedia.org/wiki/Floating-point_arithmetic#Accuracy_problems
>
> It seem that floating point arithmetic is killer at certain
> situations, so I will just make sure not to fiddle with missiles.
So could be integers as well, these were (fortunately) not killers:
https://hownot2code.com/2016/09/02/a-space-error-370-million-for-an-integer-overflow/
https://medium.com/@jollyfish/integer-overflow-underflow-and-floating-point-imprecision-6ba869a99033
next prev parent reply other threads:[~2021-04-03 4:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-02 13:42 What is 0.01 here not 0.01 here 0.009999999999999? Jean Louis
2021-04-02 13:56 ` Stefan Monnier
2021-04-02 17:03 ` Jean Louis
2021-04-02 17:41 ` Teemu Likonen
2021-04-02 18:44 ` Jean Louis
2021-04-02 20:46 ` John Yates
2021-04-02 21:19 ` Jean Louis
2021-04-02 22:04 ` John Yates
2021-04-02 23:29 ` Jean Louis
2021-04-03 4:39 ` Arthur Miller
2021-04-03 5:36 ` Jean Louis
2021-04-03 3:56 ` Arthur Miller
2021-04-03 5:19 ` Jean Louis
2021-04-03 13:54 ` Stefan Monnier
2021-04-02 14:02 ` Eli Zaretskii
2021-04-02 17:07 ` Jean Louis
2021-04-03 4:49 ` Arthur Miller [this message]
2021-04-16 20:41 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-04-17 10:53 ` Jean Louis
2021-04-19 10:51 ` Eric S Fraga
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