zlarfgp.f(3) LAPACK zlarfgp.f(3)NAME
zlarfgp.f -
SYNOPSIS
Functions/Subroutines
subroutine zlarfgp (N, ALPHA, X, INCX, TAU)
ZLARFGP generates an elementary reflector (Householder matrix) with non-negatibe beta.
Function/Subroutine Documentation
subroutine zlarfgp (integerN, complex*16ALPHA, complex*16, dimension( * )X, integerINCX, complex*16TAU)
ZLARFGP generates an elementary reflector (Householder matrix) with non-negatibe beta.
Purpose:
ZLARFGP generates a complex elementary reflector H of order n, such
that
H**H * ( alpha ) = ( beta ), H**H * H = I.
( x ) ( 0 )
where alpha and beta are scalars, beta is real and non-negative, and
x is an (n-1)-element complex vector. H is represented in the form
H = I - tau * ( 1 ) * ( 1 v**H ) ,
( v )
where tau is a complex scalar and v is a complex (n-1)-element
vector. Note that H is not hermitian.
If the elements of x are all zero and alpha is real, then tau = 0
and H is taken to be the unit matrix.
Parameters:
N
N is INTEGER
The order of the elementary reflector.
ALPHA
ALPHA is COMPLEX*16
On entry, the value alpha.
On exit, it is overwritten with the value beta.
X
X is COMPLEX*16 array, dimension
(1+(N-2)*abs(INCX))
On entry, the vector x.
On exit, it is overwritten with the vector v.
INCX
INCX is INTEGER
The increment between elements of X. INCX > 0.
TAU
TAU is COMPLEX*16
The value tau.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 105 of file zlarfgp.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 zlarfgp.f(3)
Check Out this Related Man Page
clarfgp.f(3) LAPACK clarfgp.f(3)NAME
clarfgp.f -
SYNOPSIS
Functions/Subroutines
subroutine clarfgp (N, ALPHA, X, INCX, TAU)
CLARFGP generates an elementary reflector (Householder matrix) with non-negatibe beta.
Function/Subroutine Documentation
subroutine clarfgp (integerN, complexALPHA, complex, dimension( * )X, integerINCX, complexTAU)
CLARFGP generates an elementary reflector (Householder matrix) with non-negatibe beta.
Purpose:
CLARFGP generates a complex elementary reflector H of order n, such
that
H**H * ( alpha ) = ( beta ), H**H * H = I.
( x ) ( 0 )
where alpha and beta are scalars, beta is real and non-negative, and
x is an (n-1)-element complex vector. H is represented in the form
H = I - tau * ( 1 ) * ( 1 v**H ) ,
( v )
where tau is a complex scalar and v is a complex (n-1)-element
vector. Note that H is not hermitian.
If the elements of x are all zero and alpha is real, then tau = 0
and H is taken to be the unit matrix.
Parameters:
N
N is INTEGER
The order of the elementary reflector.
ALPHA
ALPHA is COMPLEX
On entry, the value alpha.
On exit, it is overwritten with the value beta.
X
X is COMPLEX array, dimension
(1+(N-2)*abs(INCX))
On entry, the vector x.
On exit, it is overwritten with the vector v.
INCX
INCX is INTEGER
The increment between elements of X. INCX > 0.
TAU
TAU is COMPLEX
The value tau.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 105 of file clarfgp.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 clarfgp.f(3)
Hello
Eventhough i've been using it myself to write some scripts, which i share already, it is just within about the next 2 weeks it will be 'stable' enough (at the step from beta (2 years) to alpha) to actualy present it by its own.
I'm talking about: TUI - (line-based) Text User Interface.... (1 Reply)
>file.1
>alpha xyz -10
>beta cos -23
>trx cgf -19
> file.2
> alpha xyz -11
>beta cos -13
>trx cgf -19
>adgf jkha -7
>output
>alpha xyz 1(reduced)
>beta cos -10(increased)
>trx cgf -19(no change)
>adgf jkha -7(no change)
check the first two columns of both the files, if the strings... (1 Reply)