CALL SEQUENCE...
       zxtrig  ZXIN ZXOUT INPUT OUTPUT [-a VAL1 -kind "VAL2" -b VAL3]
 
 
      DESCRIPTION...
       ZXTRIG  - CROSS-SECTION MULTIPLIED BY CONST*TRIG(LAT)**N
 
 
      AUTHOR  - J.D.Henderson, MAY 25/81.
      LAST REVISION: $Header: /home/cvs/RMNLIB/utils/rdiag/lspgm/zxtrig.ptn,v 4.7 2014/09/25 20:20:57 dugas Exp $
 
 
      PURPOSE - MULTIPLIES CROSS-SECTIONS IN ZXIN FILE BY CONST*TRIG(LAT)**N
                AND PUTS THE RESULT ON FILE ZXOUT, WHERE TRIG ABOVE CAN BE 
                ANY OF SIN,COS OR TAN. 0**0 IS SET TO 1
 
      NOTE    - THE MAXIMUM NUMBER OF LATITUDES AND LEVELS IS 999
                
 
      INPUT FILE...
       ZXIN = GLOBAL OR HEMISPHERIC CROSS-SECTIONS
 
      OUTPUT FILE...
       ZXOUT = CROSS-SECTIONS MULTIPLIED AS REQUESTED
 
 
      INPUT PARAMETERS...
 
       CONST (a)    = MULTIPLYING CONSTANT. BLANK DEFAULT IS 1.0
       KTR   (kind) = 'SIN', 'COS', 'TAN'. BLANK DEFAULT IS 'COS'
       N     (b)    = INTEGER POWER TO WHICH TRIG FUNCTION IS RAISED.
                      BLANK DEFAULT IS 1
 
       READ( 5,5010 ) CONST,KTR,N
 5010  FORMAT(10X,E10.0,2X,A3,I5)
 
 
      EXAMPLE OF INPUT CARD...
 
    ZXTRIG      1.E0  COS    2
 
         0123456789012345678901234567890123456789012345678901234567890
         1         2         3         4         5         6         7
 
 
      EXIT CONDITIONS...
        0 NO PROBLEMS
        1 KTR IS NEITHER SIN,COS OR TAN
        2 PROBLEMS READING ZXIN
        3 FOUND DATA TYPE NOT ZONAL IN ZXIN
        4 ABORT ERROR READING ZXIN
        5 MORE THAN ONE SIZE IN ZXIN
        6 ABORT ERROR READIND INPUT DIRECTIVES