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I was looking for a way to center text underneath math symbols such as constraints or regions. More specifically, from vector calculus, if we were to have a double integral bounded by some region D, then we would have the two integral signs with a D underneath. It looks like the D_1 and D_2 as seen below.
I cannot see this:
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[ \iint\limits_{D_1} f(x,y)\mathrm{d}A \]
\end{document}
\stackrel[below]{main}{above}(stackrelpackage) in the general case and a simple\iint_{D}or\iint\limits_{D}for the double integral (with theamsmathpackage).\iint\limits_{D}did the trick. It was the\limitsI believe that was needed. I have a question about the\stackrel[below]{main}{above}, what type of text or math code would actually goes in the "below" ,"main", and "above" fields?\stackrel: Most likely any math code as well as text inside\mbox{..}or better\text{..}.\stackrelor\stackbinare the answer (they build relations and binary operations). First of all one should consider\oversetand\undersetfrom amsmath (which already do a good job of recognizing automatically the math kind of the main object).\stack...just sounded good for this case. :-)