GNU Info

(texinfo)need

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`@need MILS': Prevent Page Breaks
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  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 N.  The `@need'
command has no effect on Info files 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 ...

  The `@need' command is useful for preventing orphans (single lines at
the bottoms of printed pages).