[Tex/LaTex] How to center an equation at the center of one column in a two-column paper

equationstwo-column

In a two columns paper, how can I center an equation to the center of one column?
Originally, what I have is:

\begin{equation}
y = ax
\end{equation}

But this fits the equation to stay, as normal text, at the left side of the column.

EDIT: I think, better than the MWE, is the link to this class, which I am using.

Best Answer

The class uses

\LoadClass[fleqn]{article}

to specify flush left equations, with no documented way of over-riding that.

that is really the point of publisher specific classes, to remove flexibility to enforce a house style.

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