Provided by: liblapack-doc_3.7.1-4ubuntu1_all
NAME
complex16_eig
SYNOPSIS
Functions subroutine zlarfy (UPLO, N, V, INCV, TAU, C, LDC, WORK) ZLARFY
Detailed Description
This is the group of complex16 LAPACK TESTING EIG routines.
Function Documentation
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) ZLARFY Purpose: 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. Parameters: UPLO 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 N N is INTEGER The number of rows and columns of the matrix C. N >= 0. V V is COMPLEX*16 array, dimension (1 + (N-1)*abs(INCV)) The vector v as described above. INCV INCV is INTEGER The increment between successive elements of v. INCV must not be zero. TAU TAU is COMPLEX*16 The value tau as described above. C C is COMPLEX*16 array, dimension (LDC, N) On entry, the matrix C. On exit, C is overwritten by H * C * H'. LDC LDC is INTEGER The leading dimension of the array C. LDC >= max( 1, N ). WORK WORK is COMPLEX*16 array, dimension (N) Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: December 2016
Author
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