.TH "TESTING/EIG/zlarfy.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/EIG/zlarfy.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBzlarfy\fP (uplo, n, v, incv, tau, c, ldc, work)"
.br
.RI "\fBZLARFY\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine zlarfy (character uplo, integer n, complex*16, dimension( * ) v, integer incv, complex*16 tau, complex*16, dimension( ldc, * ) c, integer ldc, complex*16, dimension( * ) work)"

.PP
\fBZLARFY\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!>
!> ZLARFY applies an elementary reflector, or Householder matrix, H,
!> to an n x n Hermitian matrix C, from both the left and the right\&.
!>
!> H is represented in the form
!>
!>    H = I - tau * v * v'
!>
!> where  tau  is a scalar and  v  is a vector\&.
!>
!> If  tau  is  zero, then  H  is taken to be the unit matrix\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>          Specifies whether the upper or lower triangular part of the
!>          Hermitian matrix C is stored\&.
!>          = 'U':  Upper triangle
!>          = 'L':  Lower triangle
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The number of rows and columns of the matrix C\&.  N >= 0\&.
!> 
.fi
.PP
.br
\fIV\fP 
.PP
.nf
!>          V is COMPLEX*16 array, dimension
!>                  (1 + (N-1)*abs(INCV))
!>          The vector v as described above\&.
!> 
.fi
.PP
.br
\fIINCV\fP 
.PP
.nf
!>          INCV is INTEGER
!>          The increment between successive elements of v\&.  INCV must
!>          not be zero\&.
!> 
.fi
.PP
.br
\fITAU\fP 
.PP
.nf
!>          TAU is COMPLEX*16
!>          The value tau as described above\&.
!> 
.fi
.PP
.br
\fIC\fP 
.PP
.nf
!>          C is COMPLEX*16 array, dimension (LDC, N)
!>          On entry, the matrix C\&.
!>          On exit, C is overwritten by H * C * H'\&.
!> 
.fi
.PP
.br
\fILDC\fP 
.PP
.nf
!>          LDC is INTEGER
!>          The leading dimension of the array C\&.  LDC >= max( 1, N )\&.
!> 
.fi
.PP
.br
\fIWORK\fP 
.PP
.nf
!>          WORK is COMPLEX*16 array, dimension (N)
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB107\fP of file \fBzlarfy\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.