CALL SEQUENCE...
       splapl  IN OUT OUTPUT
 
 
      DESCRIPTION...
       splapl - CALCULATES LAPLACIAN OF SPECTRAL INPUT FILE
 
 
      AUTHOR  - B.Dugas, JUL 22/86.
      LAST REVISION: $Header: Autres-corrections-d-usages-de-MAXW-NWDS-modifs-dans-GGSIGN-SIGNAG @ 2018-06-05 17:00:06 -0400 (dugas) $
 
 
      PURPOSE - CALCULATES THE LAPLACIAN IN FILE (OUT) OF THE INPUT 
                FILE (IN) BY MULTIPLYING IT BY (-N(N+1)/A**2)
 
      NOTE    - ALL RECORDS ARE TO BE OF THE SAME SIZE AND TYPE.
 
 
      INPUT FILE...
       IN  =  CCRN FORMAT SPECTRAL FILE
 
      OUTPUT FILE...
       OUT = FILE CONTAINING THE LAPLACIAN OF THE INPUT FILE
 
 
      EXIT CONDITIONS...
       0 NO PROBLEMS
       1 PROBLEMS READING IN
       2 UNABLE TO DETERMINE SPECTRAL PARAMETRES
       32 MORE THAN ONE SIZE