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I am looking for functionality similar to the endfloat package but for equations. Instead of displaying an equation I would like to display a placeholder such as

[equation 1 here]

Does anyone know of such a package?

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1  
I don't understand what prevents you from writing precisely that? maybe with boxed{}? I've had a hard combustion exam today so maybe I'm missing something... –  JorgeGT Jun 8 '11 at 12:37
    
I basically want to have a switch to turn off all equations but still have the automatic numbering. But also have the options to turn them on as well. –  cameron.bracken Jun 10 '11 at 17:52

2 Answers 2

up vote 4 down vote accepted

The following works for the standard equation environment, but not for other math environments:

\documentclass[a4paper]{article}
\let\oldequation\equation
\let\oldendequation\endequation
\renewenvironment{equation}
  {\setbox0=\vbox\bgroup\oldequation}
  {\oldendequation\egroup\[\hbox{[Equation \theequation\ here]}\]}
\begin{document}
\begin{equation}
x=y
\end{equation}
\end{document}

I can't think of any application.

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This example works! And it is exactly what I need! My application is that I am writing a journal article, and my colleges can only work in word. The conversion to word from pdf goes much smoother when there is no math in the document but I still need to reference the equations. I also needed to be able to turn it off for the final version when I submit. Thanks again! –  cameron.bracken Jun 10 '11 at 17:59

Not sure if this is what you meant, but you want to add reminder in the document to go back and actually add the equation there, then the todonotes package would be useful.

\documentclass{article}
\usepackage{todonotes}

\begin{document}
\todo[inline]{equation 1 here}
\end{document}
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This would work except the numbering is not automatic. –  cameron.bracken Jun 10 '11 at 18:05

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