1CLARFX(1)           LAPACK auxiliary routine (version 3.2)           CLARFX(1)
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NAME

6       CLARFX  -  applies a complex elementary reflector H to a complex m by n
7       matrix C, from either the left or the right
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SYNOPSIS

10       SUBROUTINE CLARFX( SIDE, M, N, V, TAU, C, LDC, WORK )
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12           IMPLICIT       NONE
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14           CHARACTER      SIDE
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16           INTEGER        LDC, M, N
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18           COMPLEX        TAU
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20           COMPLEX        C( LDC, * ), V( * ), WORK( * )
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PURPOSE

23       CLARFX applies a complex elementary reflector H to a  complex  m  by  n
24       matrix  C,  from  either the left or the right. H is represented in the
25       form
26             H = I - tau * v * v'
27       where tau is a complex scalar and v is a complex vector.
28       If tau = 0, then H is taken to be the unit matrix
29       This version uses inline code if H has order < 11.
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ARGUMENTS

32       SIDE    (input) CHARACTER*1
33               = 'L': form  H * C
34               = 'R': form  C * H
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36       M       (input) INTEGER
37               The number of rows of the matrix C.
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39       N       (input) INTEGER
40               The number of columns of the matrix C.
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42       V       (input) COMPLEX array, dimension (M) if SIDE = 'L'
43               or (N) if SIDE = 'R' The vector v in the representation of H.
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45       TAU     (input) COMPLEX
46               The value tau in the representation of H.
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48       C       (input/output) COMPLEX array, dimension (LDC,N)
49               On entry, the m by n matrix C.  On exit, C  is  overwritten  by
50               the matrix H * C if SIDE = 'L', or C * H if SIDE = 'R'.
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52       LDC     (input) INTEGER
53               The leading dimension of the array C. LDA >= max(1,M).
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55       WORK    (workspace) COMPLEX array, dimension (N) if SIDE = 'L'
56               or  (M)  if  SIDE = 'R' WORK is not referenced if H has order <
57               11.
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61 LAPACK auxiliary routine (versionNo3v.e2m)ber 2008                       CLARFX(1)
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