I can't find official documentation for the \@startsection
command.
I already looked in:
- LaTeX Wikibook
- LaTeX: Structured document for TEX, 2008
- beginLatex — a book that comes with ProTeX
- in the files that comes with MikTeX in the folder
doc
and Google.
I found a lot of sites that show examples and discussions about it but I'd like to find the official help or document.
Best Answer
The actual command, including its formal definition posted by @JoshLee is contained in the LaTeX 2e source, section 61.2 Sectioning (p 283). It forms part of
ltsect.dtx
, the bundle containing all sectioning commands for LaTeX. It even includes a pseudo-code interpretation of the actual macro. Here is an extract: