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I have a set of equations which are defined below

\begin{figure*}[h] \label{eq1}
\begin{alignat}{2}
   & E_{\mathrm{access}}    && = E_{\mathrm{read}} + E_{\mathrm{write}} 
                               = E_{\mathrm{R\_L1}} + E_{\mathrm{R\_lower}} + E_{\mathrm{W\_L1}} + E_{\mathrm{W\_lower}} \label{equation1} \\
   ....
\end{alignat}   
\end{figure*}

The output produced is logically correct. However, I want to use smaller fonts and reduce the distance between symbols. For example, the distance between T+D, N*E....

enter image description here

How can I do that?

mahmood
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    Apart from using a different font size (say \small), see How to change default for spacing around binary relations? (possible duplicate?) where you can set/adjust the lengths \thickmuskip, \medmuskip and/or \thinmuskip. Each affects different spaces around different components. – Werner Dec 29 '14 at 16:08
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    You may want to omit all \times instuctions: They take up a lot of space and they are redundant. Separately, are you using \Bigl( and \Bigr) to create the large round parentheses? They look disproportionately large. Using \bigl[ and \bigr] will take up less space. – Mico Dec 29 '14 at 16:09
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    two column figures can not be h (and you should never use h on its own anyway) so that should be \begin{figure} or \begin{figure}[htp] depending (examples should be a complete document) – David Carlisle Dec 29 '14 at 16:13
  • Thanks for the comment.s However it seem that \small doesn't work in alignt environment. – mahmood Dec 29 '14 at 18:08
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    @mahmood: Place \small outside the alignat environment but still in your figure float. – Werner Dec 29 '14 at 18:14

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