GNU bug report logs - #40892
26.3; emacs calculator.el: return values are truncated integers

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Package: emacs;

Reported by: Aitor Soroa <a.soroa <at> ehu.eus>

Date: Mon, 27 Apr 2020 07:14:01 UTC

Severity: minor

Tags: confirmed

Found in versions 26.3, 26.1

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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From: Tomas Nordin <tomasn <at> posteo.net>
To: Andreas Schwab <schwab <at> linux-m68k.org>, Aitor Soroa <a.soroa <at> ehu.eus>
Cc: 40892 <at> debbugs.gnu.org
Subject: bug#40892: 26.3; emacs calculator.el: return values are truncated integers
Date: Mon, 27 Apr 2020 11:12:12 +0200

Andreas Schwab <schwab <at> linux-m68k.org> writes:

> On Apr 27 2020, Aitor Soroa wrote:
>
>> The calculator.el: wrongly returns integers. For instance:
>>
>> emacs -Q
>> M-x calculator
>> 22 / 7
>>
>> The answer is '3'. Even worse, If I set calculator-remove-zeros to nil,
>> then I get '3.000'
>
> This is consistent with how Emacs Lisp works:
>
> ELISP> (/ 22 7)
> 3 (#o3, #x3, ?\C-c)
> ELISP> (/ 22 7.0)
> 3.142857142857143

It might be a bit surprising through an interface that is meant to be
similar to popular calc apps (if meant so). On the other hand maybe one
wants to do integer divisions as well. This report could be a suggestion
of a new variable like 'treat-input-integers-as-floats'.
This bug report was last modified 5 years and 77 days ago.

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