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Problem with Equation Reference

LaTeX Forum: Math & Science

Add tags Information and discussion about LaTeX's math and science related features (e.g. formulas, graphs).

Postby beth87 on Fri Jul 1st, 2011

I tried to use the following commands
Code: Select all  •  Open in writeLaTeX
\begin{equation}\label{xx} 3+4=7 \end{equation}

Referring to the equation \eqref{xx


Code: Select all  •  Open in writeLaTeX
\begin{equation}3+4=7 \label{xx}\end{equation}

Referring to the equation \eqref{xx

but it did not work...
it worked just if instead of \eqref{xx} I wrote \ref{xx}. Why is it so? Should I use a particular package? N.B I am using Texniccenter and Mixtek as a compiler
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Postby localghost on Fri Jul 1st, 2011

"It doesn't work" is an error description that is as good as useless. What is the exact error message from the log? As a random shot I would guess that you forgot to load the amsmath package.

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