Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu!seiler
From: seiler@ccwf.cc.utexas.edu (Carl Seiler)
Newsgroups: comp.text.tex
Subject: Help with LaTeX label and ref
Keywords: LaTex, TeX, label, ref, equations
Message-ID: <41098@ut-emx.uucp>
Date: 10 Dec 90 16:17:02 GMT
Sender: news@ut-emx.uucp
Reply-To: seiler@ccwf.cc.utexas.edu (Carl Seiler)
Organization: The University of Texas at Austin
Lines: 37
Originator: seiler@daisy.cc.utexas.edu

Help, I'm having trouble with \label and \ref commands in LaTeX.

In my paper of documentstyle "article", I have several equations that
need to be labeled and referenced in the text.  Here's part of my
*.tex file:

  The cartel will picks a price schedule which will maximize the
  sum of its discounted profits over the time period, i.e.:
  \begin{equation} \max W = \sum_{t=1}^{N}  (1/(1+d)^{t}) (P_{t} -
     m/R_{t} ) D_{t}
  \label{eq:obj}
  \end{equation}
  where $m/R_{t}$ is the average production cost and $d$ is the

and later I have...

  adding a term to the equation ~\ref{eq:obj} so that the
  $D_{t}(P_{t}-m/R_{t})$ portion becomes $D_{t}(P_{t}-m/R_{t}-b

And when I run it through LaTex, I get the message:

Reference `eq:obj' on page 8 undefined.

What's the problem here?  I KNOW I have referenced every single
equation, as above, and NONE of them have worked.  I had to go back in
and manually reference each one, and it worked fine.  There's nothing
wrong with my label declaration I don't think, because Tex doesn't
complain about not knowing what the control sequence is.

Please help soon.  I'm running out of time. >grin, who isn't<

-<Carl>-
...who will do it manually if he has to.
-- 
__________________________________________________________________________
Carl Seiler, Economics, U.T. Austin | INTERNET: seiler@ccwf.cc.utexas.edu
          FidoNet: 1:382/27 -- Carl_Seiler@f86.n382.z1.fidonet.org