@unnumberedsec, @appendixsec, @heading ¶The @unnumberedsec, @appendixsec, and @heading
commands are, respectively, the unnumbered, appendix-like, and
heading-like equivalents of the @section command (see the
previous section).
@unnumberedsec and @appendixsec do not need to be used
in ordinary circumstances, because @section may also be used
within @unnumbered and @appendix chapters; again, see
the previous section.
@unnumberedsecThe @unnumberedsec command may be used within an unnumbered
chapter or within a regular chapter or appendix to produce an
unnumbered section.
@appendixsec ¶@appendixsection@appendixsection is a longer spelling of the
@appendixsec command; the two are synonymous.
Conventionally, the @appendixsec or @appendixsection
command is used only within appendices.
@headingYou may use the @heading command (almost) anywhere for a
section-style heading that will not appear in the table of contents.
The @heading-series commands can appear inside most
environments, for example, though pathological and useless locations
such as an argument to another command, etc., are not allowed.