Name:          VOIGT              


Purpose:       VOIGT computes the value of an N-component Voigt

Files:         voigt.dc2,voigt.shl

Author:        Peter Roelfsema


Call:

    GX=VOIGT(X,PAR,NPAR)

Input parameters:
             X     -R   -running coordinate.
             PAR   -R   -array defined as follows: PAR(0:NPAR*4) that
                 contains the parameters for the Voigt in the following
		    order:

                         PAR(0)        -zerolevel
                    PAR(1)  -PAR(4)    -int, pos. of peak, gauss fwhm
                                        and lorentz fwhm of cmp.  1
                          .                     .
                  PAR(1+4*n)-PAR(4+4*n)-int, pos. of peak, gauss fwhm
                                        and lorentz fwhm of cmp.  n-1
                                  etc
             NPAR  -I   -number of components.

Use:
               VOIGT gives the value of a multi-component gaussian.
               Note that the Voigt components are defined in terms of
               their Intensity, centre coordinate and Full Widths at Half
               Maximum (i.e. not in terms of amplitude and sigma ! ).



Update History:
   6-12-85-PRR.-original document
   8- 1-86-PRR.-fixed small bug
  16- 6-86-PRR.-coverted to VAX8600.
  10-11-92-PRR.-converted to UNIX-GIPSY