
XPRISM3(INPUT_FILE)          Khoros           XPRISM3(INPUT_FILE)

     FUNCTIONS

     A "function" that was previously saved in ASCII format in a
     file, may be used as input for Xprism3.  Numerous operators
     and functions are supported using this method of input.
     Either C-style /*  */ comments or a '#' may be used to
     designate comments in the functions file. If a '#' is used,
     then all characters to the end of that line are ignored.

     To plot a "function" file, fill in the "Filename" parameter
     box with the desired filename (for more information, see the
     help on the Environment Pane), and click on the "PLOT FILE"
     action button.  The information from the "function" file
     will be read in, interpreted as described above, and
     displayed according to the current value of the "plot type"
     toggle.

     The syntax for specifing a function in a file is as follows:

          f(x,y) = sin(x) * cos(y) + x^2
          x = (-pi, 3.14, 40)
          y = (-pi, 3.14, 40)

     The "f(x,y)=" preceding the function is a must.  The range
     must be in the form illustrated. If this form is not fol-
     lowed exactly, the parser will generate an error message.
     The fields for the x and y range are as follows:

          x = (minimum point, maximum point, number of points)
          y = (minimum point, maximum point, number of points)

     For more information on the Khoros expression parser, see
     below.

     Copyright 1991, University of New Mexico. All rights
     reserved.

Khoros                    Release: 1.0                          1

