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How to add a dot after the section number?

Each of my section tags looks like the following:enter image description here

What I want is punctuation after each section number. I am not sure where the TeX is that generates the section numbers.

All help is appreciated!

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which documentclass? –  Herbert Dec 14 '12 at 9:49
    
Since your question is (in spirit) the same as the question linked in the comment above and since the answers listed there apply to your case as well, I am voting to close this as a duplicate to keep the place tidy. –  Vivi Dec 14 '12 at 10:19
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marked as duplicate by lockstep, David Carlisle, Vivi, Claudio Fiandrino, Stefan Kottwitz Dec 14 '12 at 10:43

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1 Answer

Easiest is

\renewcommand{\thesection}{\arabic{section}.}

Which will put a . after all uses of the section counter, including references to sections. If you only want to change the section head (and table of contents?) then it is a bit more involved, and depends on the document class you are using.

If you do the above however you probably need to also redefine

\renewcommand\thesubsection{\thesection\arabic{subsection}}

so you don't get two .. there.

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I voted to close this question as duplicate. This answer is equivalent to egreg's answer to the linked question but there are other good suggestions there as well. –  David Carlisle Dec 14 '12 at 10:17
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