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Re: @math in manual

From: Karl Berry
Subject: Re: @math in manual
Date: Tue, 2 Oct 2007 14:00:27 -0500

    Here it is. Wording is bad, but everything is there...

Thanks Patrice.  I'll append my revised version.  One thing I left out,
since I didn't understand:

   Lone braces @address@hidden and @address@hidden do not trigger errors in 

makeinfo complains about @math{foo}} for me, since of course it thinks
the argument is "foo", leaving a spurious }.  It also complains about
@math{{foo}.  What mismatched-brace input were you seeing that went through?


The @code{@@math} command has no special effect on the Info and HTML
output.  @command{makeinfo} expands any @code{@@}-commands as usual,
but it does not try to produce good mathematical formatting in any

Plain @TeX{} commands are allowed in @code{@@math}.  This allows you
to conveniently write superscripts and subscripts (as in the above
example), and also to use all the plain @TeX{} math control sequences
for symbols, functions, and so on, and thus get proper formatting in
the @TeX{} output, at least.

That is, as far as the @TeX{} output is concerned, @samp{\} is an
escape character inside @code{@@math}, and in fact it's best to use
@samp{\} instead of @samp{@@} for any such mathematical commands;
otherwise, @command{makeinfo} will complain.  

Here's an example:

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