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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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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.

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

1 Answer 1

Easiest is


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


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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