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I want to change the caption number from 2.1 to 2.3.1 as my section is 2-3. I got try to use \usepackage{chngcntr} and \counterwithin{table}{section} but due to my section title is 2-3. It will label the '2.3.1' that I want as '2-3.1'. Anyone know how to change?

Section title

Using counterwithin method

  • Just to be clear, you want the table to be numbered 2-3.1 and not 2.3.1, correct? – Werner Dec 17 '13 at 7:26
  • i want the table to be numbered as 2.3.1, not 2-3.1. I use the \counterwithin{table}{section} will produce 2-3.1, but i want 2.3.1 :D – superhuman1314 Dec 17 '13 at 7:29
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    Is 2 the section and 3 the subsection and 1 the table? – Werner Dec 17 '13 at 7:30
  • erm, i am not really sure, but the 'Eigenvalues and Eigenvectors' is inside chapter 2. So i guess is chapter 2, section 3 and table 1. – superhuman1314 Dec 17 '13 at 7:36
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chngcntr is meant to manage counter resetting from continuous to per-unit and vice versa. However, you're interested in adjusting the counter representation. To do so add

\renewcommand{\thetable}{\arabic{chapter}.\arabic{section}.\arabic{table}}

to your document preamble. The default would be to use

\renewcommand{\thetable}{\thesection.\arabic{table}}

which would inherit the hierarchy associated with the section numbering (also, typically, \thechapter.\arabic{section}), and pass it on to the table numbering. For what it's worth, this is a good thing, since the numbering style matches across the hierarchy and is consistent.

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