Functions
Sub	Rfft1b (N As Long, R() As Double, Wsave() As Double, Info As Long, Optional Inc As Long=1)
	One-dimensional real fast Fourier backward transform

Sub	Rfft1f (N As Long, R() As Double, Wsave() As Double, Info As Long, Optional Inc As Long=1)
	One-dimensional real Fourier transforms

Sub	Rfft1i (N As Long, Wsave() As Double, Info As Long)
	Initialization of work data for Rfft1f and Rfft1b

Detailed Description

This is the group of J1. Trigonometric transforms including fast Fourier transforms.

Functions