@node Angle, Apropos, Abort, Commands

@iftex
@syntax Angle.
@end iftex
@pindex Angle
@example
Syntax: ANGLE expr
@end example

   For most purposes only the first element of the expr is used, let's
call it @code{D} as it's an angle in degrees.

   ANGLE will cause text from LABEL to come out @code{D} degrees
anti-clockwise from horizontal. It also causes points to be rotated
counter-clockwise by @code{D} degrees.

If @code{D} is non-zero it will force axis and other labels to be
written with SM's internal fonts, and will overrule the
tendency to put x-axis labels horizontal, and y-axis labels vertical.

   For plotting points the full vector of values is used, with the
point rotated by the value of expr. If more points are specified than
the dimension of expr, the first element will be used for the excess.

The current value of @code{ANGLE} is (almost) always available as the variable
@code{$angle} (it is one of the special variables that are affected by the
@code{DEFINE variable |} command).
@findex internal variables, angle