LyX Question on Table Numbering

Question

How can you change table numbers in LyX. I want to get tables numbered within section (Table 1.1, 1.2 etc.). For some reason \numberwithin{table}{section} is not working.

Answer 1

\numberwithin{<slave>}{<master>} is a macro defined by amsmath. So, in order to use it, you need to add the following to your LaTeX Preamble:

\usepackage{amsmath}% http://ctan.org/pkg/amsmath

Similar functionality is provided by chngcntr, via macros like \counterwithin and \counterwithout. The latter package provides the means to removing any counter bindings, which amsmath does not offer.