Functions
void	_cfft2b (int l, int m, int ldc, double _Complex c[], double wsave[], int lwsave, double work[], int lwork, int *info)
	Two-dimensional complex Fourier backward transform

void	_cfft2f (int l, int m, int ldc, double _Complex c[], double wsave[], int lwsave, double work[], int lwork, int *info)
	Two-dimensional complex Fourier transform

void	_cfft2i (int l, int m, double wsave[], int lwsave, int *info)
	Initialization of work data for cfft2f and cfft2b

void	_rfft2b (int l, int m, int ldr, double r[], double wsave[], int lwsave, double work[], int lwork, int *info)
	Two-dimensional real Fourier backward transform

void	_rfft2c (int l, int m, int ldr, double r[], int ldc, double _Complex c[], int *info)
	Full complex data of two-dimensional Fourier transform by rfft2f

void	_rfft2f (int l, int m, int ldr, double r[], double wsave[], int lwsave, double work[], int lwork, int *info)
	Two-dimensional real Fourier transform

void	_rfft2i (int l, int m, double wsave[], int lwsave, int *info)
	Initialization of work data for rfft2f and rfft2b

Detailed Description

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

Functions