zlar2v.f (3)  Linux Man Pages
NAME
zlar2v.f 
SYNOPSIS
Functions/Subroutines
subroutine zlar2v (N, X, Y, Z, INCX, C, S, INCC)
ZLAR2V applies a vector of plane rotations with real cosines and complex sines from both sides to a sequence of 2by2 symmetric/Hermitian matrices.
Function/Subroutine Documentation
subroutine zlar2v (integerN, complex*16, dimension( * )X, complex*16, dimension( * )Y, complex*16, dimension( * )Z, integerINCX, double precision, dimension( * )C, complex*16, dimension( * )S, integerINCC)
ZLAR2V applies a vector of plane rotations with real cosines and complex sines from both sides to a sequence of 2by2 symmetric/Hermitian matrices.
Purpose:

ZLAR2V applies a vector of complex plane rotations with real cosines from both sides to a sequence of 2by2 complex Hermitian matrices, defined by the elements of the vectors x, y and z. For i = 1,2,...,n ( x(i) z(i) ) := ( conjg(z(i)) y(i) ) ( c(i) conjg(s(i)) ) ( x(i) z(i) ) ( c(i) conjg(s(i)) ) ( s(i) c(i) ) ( conjg(z(i)) y(i) ) ( s(i) c(i) )
Parameters:

N
N is INTEGER The number of plane rotations to be applied.
XX is COMPLEX*16 array, dimension (1+(N1)*INCX) The vector x; the elements of x are assumed to be real.
YY is COMPLEX*16 array, dimension (1+(N1)*INCX) The vector y; the elements of y are assumed to be real.
ZZ is COMPLEX*16 array, dimension (1+(N1)*INCX) The vector z.
INCXINCX is INTEGER The increment between elements of X, Y and Z. INCX > 0.
CC is DOUBLE PRECISION array, dimension (1+(N1)*INCC) The cosines of the plane rotations.
SS is COMPLEX*16 array, dimension (1+(N1)*INCC) The sines of the plane rotations.
INCCINCC is INTEGER The increment between elements of C and S. INCC > 0.
Author:

Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
 September 2012
Definition at line 112 of file zlar2v.f.
Author
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