Functions
Sub	Cfft2b (L As Long, M As Long, C() As Complex, Wsave() As Double, Info As Long)
	Two-dimensional complex Fourier backward transform

Sub	Cfft2f (L As Long, M As Long, C() As Complex, Wsave() As Double, Info As Long)
	Two-dimensional complex Fourier transform

Sub	Cfft2i (L As Long, M As Long, Wsave() As Double, Info As Long)
	Initialization of work data for Cfft2f and Cfft2b

Sub	Rfft2b (L As Long, M As Long, R() As Double, Wsave() As Double, Info As Long)
	Two-dimensional real Fourier backward transform

Sub	Rfft2c (L As Long, M As Long, R() As Double, C() As Complex, Info As Long)
	Full complex data of two-dimensional Fourier transform obtained by Rfft2f

Sub	Rfft2f (L As Long, M As Long, R() As Double, Wsave() As Double, Info As Long)
	Two-dimensional real Fourier transform

Sub	Rfft2i (L As Long, M As Long, Wsave() As Double, Info As Long)
	Initialization of work data for Rfft2f and Rfft2b

Detailed Description

This is the group of J1b. Multidimensional fast Fourier transforms.

Functions