@node Levels, Limits, Label, Commands

@iftex
@syntax Levels.
@end iftex
@example
Syntax: LEVELS WORD
        LEVELS expr
@end example
@pindex Levels
@findex 2-dimensional graphics, contour levels

Set the levels for the CONTOUR command to be the values of the 
vector @code{WORD} or to the values of the expression.