@node Expand, Fft, Errorbar, Commands

@iftex
@syntax Expand.
@end iftex
@example
Syntax: EXPAND expr
@end example
@pindex Expand
@findex character size
@findex points, size
   EXPAND expands all characters and points, its default is 1.0. Note that the
EXPAND factor is used in determining the plot window size in the WINDOW
command. This means you should declare your EXPAND size to SM (if other
than the default) before you use WINDOW. The current value of EXPAND
is available as a @code{DEFINE expand |}.
@findex internal variables, expand

If EXPAND is set to exactly 1, and ANGLE is exactly 0, then SM
will use hardware fonts, when available, in writing labels. This is faster,
but if you don't like it say ``EXPAND 1.00001'', or ``ANGLE 0.00001'',
or use a \r explicitly to select the roman font.

EXPAND can in fact be given a vector of values, which are used for
each point in a POINTS command. This supersedes the use of a fractional
PTYPE (although we still support it as a quaint anachronism). Using
vectors for both ANGLE and EXPAND makes it easy to draw a vector
field, see (for example) the @code{vfield} macro.
@findex vector field
If more points are specified than
the dimension of expr, the first element will be used for the excess.