
calling an equation..
suppose i have this command..
\begin{equation} blahbah \end{equation}
If blah, then heh..
\begin{equation} blahbahblah \end{equation}
the two equations will be labeled then.. my problem is, how would i call the equation if i am going to use it somewhere..
for example, "using equation ?, we get..."
i can do it manually, but suppose i have lots of equations? generally, one wouldn't and not advisable to count for the equation label,,
got my problem?
thanks for your help guys!! :)

Hello, kalagota
Use \label{} and \ref{} :
Code:
\begin{equation}
x=y
\label{nameofthisequation}
\end{equation}
From equation \ref{nameofthisequation} we have...
\ref{nameofthisequation} prints the number of the equation labelled "nameofthisequation". In case you don't know it : you must compile twice your document when you use \label{} and \ref{}.
Another possibility is to use the command \eqref{} (from the package amsmath) instead of \ref{}. \eqref{} puts labels of equations between parenthesis, \ref{} doesn't.
