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From: eijkhout@s41.csrd.uiuc.edu (Victor Eijkhout)
Newsgroups: comp.text.tex
Subject: Re: doing a \ref{} in a \caption of a figure in LaTeX
Message-ID: <1990Nov4.203542.18675@csrd.uiuc.edu>
Date: 4 Nov 90 20:35:42 GMT
References: <1232@lehi3b15.csee.Lehigh.EDU>
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Organization: UIUC Center for Supercomputing Research and Development
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porphano@hobbes.sfc.lehigh.edu (Paul A. Orphanos) writes:

>I have a user at our site who is trying to reference an equation as
>part of a figure caption. The equation is tagged normally, but when it
>is referred to in the caption, LaTeX gives an error message saying

>\begin{figure}[h]
>\caption{Equation~\ref{idovergm}  }
>\label{idgmvsvgvth}
>\end{figure}

Should I say RTFM? On page 59 of the LaTeX book it says about
the argument of a \caption command:
``This is a moving argument, so fragile commands must be
\protect-ed''
And just what is the fragile command here? On page 72 it says:
``The \ref and \pageref commands are fragile''

I mean, there is a good book about LateX, so if the combination
of two commands goes wrong, you look both of them up in it,
right?

You're welcome...

Victor.