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<p style="margin-top:0;margin-bottom:0">Hi</p>
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<p style="margin-top:0;margin-bottom:0">The leqno option of LaTeX, more or less does something in the following lines</p>
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<div>$$</div>
<div>1+2=3\eqno\hbox{%</div>
<div>\hbox to .01pt{}</div>
<div>\rlap{\hskip-\displaywidth </div>
<div>(1)}}</div>
<div>$$</div>
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<div>$$</div>
<div>1+2=3\leqno(1)</div>
<div>$$</div>
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<div>\bye</div>
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<p style="margin-top:0;margin-bottom:0">to fake \leqno using \eqno. Of course, one can also go ahead and fake \eqno using \leqno.</p>
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<div>What are the possible side effects of such approach? should it be avoided?</div>
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<div>Vafa</div>
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