From: Noam Postavsky <npostavs@gmail.com>
To: Mauro Aranda <maurooaranda@gmail.com>
Cc: Charles Karney <charles.karney@sri.com>, 37235@debbugs.gnu.org
Subject: bug#37235: 26.1; Precedence error in calc-eval
Date: Fri, 30 Aug 2019 11:26:57 -0400 [thread overview]
Message-ID: <85r252ishq.fsf@gmail.com> (raw)
In-Reply-To: <CABczVwcqb3WMmXTRGOu+qjTmnFBhs=3=EK+dL6ajpbicoHLB-g@mail.gmail.com> (Mauro Aranda's message of "Fri, 30 Aug 2019 12:04:35 -0300")
Mauro Aranda <maurooaranda@gmail.com> writes:
>>
>> 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.
Also see (info "(calc) Basic Arithmetic"),
> 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
which mentions calc-multiplication-has-precedence.
next prev parent reply other threads:[~2019-08-30 15:26 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
2019-08-30 15:26 ` Noam Postavsky [this message]
2019-09-16 3:06 ` Stefan Kangas
2019-08-30 15:07 ` Andreas Schwab
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