From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julius Dittmar <Julius.Muller@gmx.net>
Subject: Re: LaTex Output with Index
Date: Wed, 15 May 2019 11:30:26 +0200
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Am 15.05.19 um 11:02 schrieb Fraga, Eric:
> On Tuesday, 14 May 2019 at 23:58, Robert Love wrote:
>> However, I have one hitch.  How do I generate an index with an entry
>> that has an =E2=80=9C@=E2=80=9C symbol in it?
>
> Unfortunately, this is beyond my latex-fu.  May have something to do
> with @ being a protected symbol.  If you want to play, you could try
>
> #+index: {\makeatletter @} term
>
> but this could lead you down a rabbit hole.  Not sure how org & LaTeX &
> makeindex will interact...

I think the main reason is the fact that @ has special meaning within
index entries: it tells where to put something for cases where the
automatical sorting fails.

I just googled and found the following advice:

=C2=BBIn order to place values with !, @, or |, which are otherwise escape
characters, in the index, one must quote these characters in the \index
command by putting a double quotation mark (") in front of them, and one
can only place a " in the index by quoting it (i.e., a key for " would
be \index{""}).

This rule does not hold for \", so to put the letter =C3=A4 in the index, =
one
may still use \index{a@\"{a}}.=C2=AB

So perhaps

#+index: "@term

works?

HTH,

Julius