CSS2C - convert from Cartesian to lat/lon coordinates

       To use CSS2C, load the NCAR Graphics library ngmath.

       Copyright (C) 2000
       University Corporation for Atmospheric Research

       The use of this Software is governed by a License Agreement.

UNIX                                                May 2000                                       CSS2C(3NCARG)

       N           (integer, input) The number of coordinates to convert.

       RLAT        (real, input) The latitudes of the input coordinates, in degrees.

       RLON        (real, input) The longitudes of the input coordinates, in degrees.

       X,Y,Z       (real, output) The Cartesian coordinates of the output points.

       CSS2C - convert from  Cartesian to  lat/lon coordinates

       css_overview, cssgrid, csc2s.

       Complete documentation for Cssgrid is available at URL
       http://ngwww.ucar.edu/ngdoc/ng/ngmath/cssgrid/csshome.html

       CALL CSS2C (N, RLAT, RLON, X, Y, Z)

       CSS2C  is  called  to  find equivalent Cartesian coordinates on the unit sphere to latitude and longitude
       coordinates.  The coordinate 0. degrees latitude and 0. degrees longitude  is  mapped  to  the  Cartesian
       coordinate (1., 0.,0.).