From: Mauro Aranda <maurooaranda@gmail.com>
To: Charles Karney <charles.karney@sri.com>
Cc: 37235@debbugs.gnu.org
Subject: bug#37235: 26.1; Precedence error in calc-eval
Date: Fri, 30 Aug 2019 12:04:35 -0300 [thread overview]
Message-ID: <CABczVwcqb3WMmXTRGOu+qjTmnFBhs=3=EK+dL6ajpbicoHLB-g@mail.gmail.com> (raw)
In-Reply-To: <857abb8d-8da0-82b2-d50d-01d57b4be681@sri.com>
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tags 37235 notabug
quit
Charles Karney via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@gnu.org> writes:
> In GNU Emacs 26.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.23.2)
> of 2018-08-13 built on buildvm-13.phx2.fedoraproject.org
> Windowing system distributor 'Fedora Project', version 11.0.12004000
> System Description: Fedora release 29 (Twenty Nine)
>
> The precedence of calc-eval doesn't follow C-like rules.
>
> (calc-eval "1/2*3") returns "0.166666666667"
>
> returning the same answer as (calc-eval "1/2/3"). It should return
> "1.5".
>
It works as documented in the Calc manual, section 5.15 Formulas:
C-h i m calc RET 5 m formulas RET
Calc gives '/' lower precedence than '*' by default.
To make Calc follow C-like rules, you can set it with the command
calc-c-language. You can read its documentation with:
C-h i m calc RET i calc-c-language
Best regards,
Mauro.
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next prev parent reply other threads:[~2019-08-30 15:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-30 13:41 bug#37235: 26.1; Precedence error in calc-eval Charles Karney via Bug reports for GNU Emacs, the Swiss army knife of text editors
2019-08-30 15:04 ` Mauro Aranda [this message]
2019-08-30 15:26 ` Noam Postavsky
2019-09-16 3:06 ` Stefan Kangas
2019-08-30 15:07 ` Andreas Schwab
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