9

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.

Double Integral over General Region D

Improve this question
5
  • 1
    I leave this to the math-experts here, but it sounds after a job of \stackrel[below]{main}{above} (stackrel package) in the general case and a simple \iint_{D} or \iint\limits_{D} for the double integral (with the amsmath package). Commented Jun 30, 2011 at 7:03
  • @Martin: Thanks. The \iint\limits_{D} did the trick. It was the \limits I 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? Commented Jun 30, 2011 at 7:16
  • 1
    about \stackrel: Most likely any math code as well as text inside \mbox{..} or better \text{..}. Commented Jun 30, 2011 at 7:32
  • 1
    @Martin: with all respect due to Heiko Oberdiek, I don't think that \stackrel or \stackbin are the answer (they build relations and binary operations). First of all one should consider \overset and \underset from amsmath (which already do a good job of recognizing automatically the math kind of the main object). Commented Jun 30, 2011 at 8:23
  • @egreg: Thanks, as stated above I'm not an expert with math. The \stack... just sounded good for this case. :-) Commented Jun 30, 2011 at 8:29

1 Answer 1

Reset to default
13

I cannot see this:

\documentclass{article} \usepackage{amsmath} \begin{document} \[ \iint\limits_{D_1} f(x,y)\mathrm{d}A \] \end{document}

enter image description here

Improve this answer
2
  • @Herbet: What do you mean by you cannot see the code? The output? Commented Jun 30, 2011 at 7:33
  • @night owl: I cannot see that the D1 is not centered below the double integral Commented Jun 30, 2011 at 7:49

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.