@need mils: Prevent Page Breaks
A line containing only
@need n starts a new page in a
printed manual if fewer than n mils (thousandths of an inch)
remain on the current page. Do not use braces around the argument
@need command has no effect on other output
formats since they are not paginated.
This paragraph is preceded by an
@need command that tells
TeX to start a new page if fewer than 800 mils (eight-tenths
inch) remain on the page. It looks like this:
@need 800 This paragraph is preceded by …
@need command is useful for preventing orphans: single
lines at the bottoms of printed pages.