W3FT12

The W3FT12 routine Fast Fourier to compute 145 grid values at
           desired latitude from 31 complex Fourier coefficients.
           This subroutinE is special purpose for converting 
           coefficients to a 2.5 degree lat,lon grid.

USAGE:  CALL W3FT12(COEF,WORK,GRID,TRIGS)

   Input variables:
      COEF      31 COMPLEX FOURIER COEFFICIENTS.
      TRIGS     216 TRIG FUNCTIONS ASSUMED PRECOMPUTED
                       BY W3FA13 BEFORE FIRST CALL TO W3FT12.
      WORK      144 REAL WORK SPACE

   Output variables:
      GRID      145 GRID VALUES, GRID(1)=GRID(145)

 


  
W3lib.tar
  
Library contains Fortran 90 decoder/encoder
   routines for GRIB edition 1. (Fortran90) 

   Date posted: 2/22/2007