A simple example
In our first example we create a window and draw a quadratic curve within it.
c--Create the data to be plotted.
c--Plot the data.
%pl is like %gr and takes the basic form:
width and height represent the pixel dimensions of a SIMPLEPLOT
graphics region within the window. Some of the options take additional
arguments. In this example, the option called x_array takes three
arguments namely the number of points N followed by an array of x
co-ordinates and an array of y co-ordinates.
Following the usual ClearWin+ convention, all real data is passed as DOUBLE
PRECISION values. However, SIMPLEPLOT uses single precision, so data values
should not exceed the single precision range.