@node Help, Histogram, Grid, Commands

@iftex
@syntax Help.
@end iftex
@example
Syntax: HELP [ word ]
@end example
@pindex Help

The HELP command tries to help you with @code{word}. If possible, it
prints the entry from the @code{help} directory specified in your @file{.sm} file, the definition of @code{word} if it's a macro,
the value of @code{word} if it's a variable, and the HELP string if it
is a vector.
If none of these are defined, HELP confesses defeat.
You might want to use the abbreviation @code{h} which will not appear on
your history list (or you could overload @code{help} itself). Further
discussion of the @code{HELP} command is given in @xref{Getting Help}.

If @code{word} is omitted it is assumed to be @code{HELP}.

You can associate a help string with a vector with the command
@code{SET HELP}.

See also APROPOS and LIST.