OouraFFT Module

Contents

Functions

cfttree

Functions

public function cfttree(n, j, k, a, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	j
integer				::	k
real(kind=8)				::	a(0:j-1)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

Return Value integer

Subroutines

public subroutine cdft(n, isgn, a, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	isgn
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine rdft(n, isgn, a, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	isgn
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine ddct(n, isgn, a, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	isgn
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine ddst(n, isgn, a, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	isgn
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine dfct(n, a, t, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n)
real(kind=8)				::	t(0:n/2)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine dfst(n, a, t, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
real(kind=8)				::	t(0:n/2-1)
integer				::	ip(0:*)
real(kind=8)				::	w(0:*)

public subroutine makewt(nw, ip, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	nw
integer				::	ip(0:*)
real(kind=8)				::	w(0:nw-1)

public subroutine makeipt(nw, ip)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	nw
integer				::	ip(0:*)

public subroutine makect(nc, ip, c)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	nc
integer				::	ip(0:*)
real(kind=8)				::	c(0:nc-1)

public subroutine cftfsub(n, a, ip, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

public subroutine cftbsub(n, a, ip, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	ip(0:*)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

public subroutine bitrv2(n, ip, a)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	ip(0:*)
real(kind=8)				::	a(0:n-1)

public subroutine bitrv2conj(n, ip, a)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	ip(0:*)
real(kind=8)				::	a(0:n-1)

public subroutine bitrv216(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:31)

public subroutine bitrv216neg(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:31)

public subroutine bitrv208(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:15)

public subroutine bitrv208neg(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:15)

public subroutine cftf1st(n, a, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
real(kind=8)				::	w(0:*)

public subroutine cftb1st(n, a, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
real(kind=8)				::	w(0:*)

public subroutine cftrec4(n, a, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

public subroutine cftleaf(n, isplt, a, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
integer				::	isplt
real(kind=8)				::	a(0:n-1)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

public subroutine cftmdl1(n, a, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
real(kind=8)				::	w(0:*)

public subroutine cftmdl2(n, a, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
real(kind=8)				::	w(0:*)

public subroutine cftfx41(n, a, nw, w)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nw
real(kind=8)				::	w(0:nw-1)

public subroutine cftf161(a, w)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:31)
real(kind=8)				::	w(0:*)

public subroutine cftf162(a, w)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:31)
real(kind=8)				::	w(0:*)

public subroutine cftf081(a, w)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:15)
real(kind=8)				::	w(0:*)

public subroutine cftf082(a, w)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:15)
real(kind=8)				::	w(0:*)

public subroutine cftf040(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:7)

public subroutine cftb040(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:7)

public subroutine cftx020(a)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=8)				::	a(0:3)

public subroutine rftfsub(n, a, nc, c)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nc
real(kind=8)				::	c(0:nc-1)

public subroutine rftbsub(n, a, nc, c)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nc
real(kind=8)				::	c(0:nc-1)

public subroutine dctsub(n, a, nc, c)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nc
real(kind=8)				::	c(0:nc-1)

public subroutine dstsub(n, a, nc, c)

Arguments

Type	Intent	Optional	Attributes		Name
integer				::	n
real(kind=8)				::	a(0:n-1)
integer				::	nc
real(kind=8)				::	c(0:nc-1)