Module DCFT2D in NMS

• NMS Information

• Components
  • Documentation from ITL
  • Fullsource from ITL
  • Sample from ITL
  • Source from ITL

DCFT2D

 
Two dimensional fast Fourier transform (FFT), forward or reverse, of a complex
n-by-m matrix F.
 
Classes  :  J1b . Multidimensional fast Fourier transforms
 
Type     : Fortran software in NMS collection.
Access   : Public domain. Portable.
Precision: Double.
 
Usage    : CALL DCFT2D(N,F,LDF,FORWD)
 
Details  : Documentation Fullsource Sample Source
Sites    : (1) ITL
 

Implementation of DCFT2D from NMS on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double. (Single: CFFT2D)