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Re: @math{-} does not produce a minus sign in Info

From: Gavin Smith
Subject: Re: @math{-} does not produce a minus sign in Info
Date: Tue, 25 Oct 2022 14:51:46 +0100

> There's another bug in the manual:
> ------------------------------------------------------------------------
> Use the '@minus{}' command to generate a minus sign.  In a fixed-width
> font, this is a single hyphen, but in a proportional font, the symbol is
> the customary length for a minus sign--a little longer than a hyphen,
> shorter than an em-dash:
>      '-' is a minus sign generated with '@minus{}',
> ------------------------------------------------------------------------
> (where '-' is the ASCII hyphen-minus), which is incorrect: in the
> MPFR manual, I get the real minus sign '−'. I suspect that the
> difference is due to the chosen encoding. But the manual is silent
> on this point.

It's not incorrect, just making accommodations for the character

FWIW, the Info file currently outputs with

     ‘−’ is a minus sign generated with ‘@minus{}’,

The − there is not an ASCII character.  Note also the directional
quote marks.

It's possible you have an old version of the manual, or that you
are running Info in a non-UTF-8 locale where fallback characters are

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