2. EL 8
  3. lapack
  4. zlartv(3)

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zlartv.f(3) LAPACK zlartv.f(3)

NAME

zlartv.f

SYNOPSIS

Functions/Subroutines


subroutine zlartv (N, X, INCX, Y, INCY, C, S, INCC)
ZLARTV applies a vector of plane rotations with real cosines and complex sines to the elements of a pair of vectors.

Function/Subroutine Documentation

subroutine zlartv (integer N, complex*16, dimension( * ) X, integer INCX, complex*16, dimension( * ) Y, integer INCY, double precision, dimension( * ) C, complex*16, dimension( * ) S, integer INCC)

ZLARTV applies a vector of plane rotations with real cosines and complex sines to the elements of a pair of vectors.

Purpose: 



 ZLARTV applies a vector of complex plane rotations with real cosines


 to elements of the complex vectors x and y. For i = 1,2,...,n


    ( x(i) ) := (        c(i)   s(i) ) ( x(i) )


    ( y(i) )    ( -conjg(s(i))  c(i) ) ( y(i) )

Parameters:

N 



          N is INTEGER


          The number of plane rotations to be applied.

X



          X is COMPLEX*16 array, dimension (1+(N-1)*INCX)


          The vector x.

INCX



          INCX is INTEGER


          The increment between elements of X. INCX > 0.

Y



          Y is COMPLEX*16 array, dimension (1+(N-1)*INCY)


          The vector y.

INCY



          INCY is INTEGER


          The increment between elements of Y. INCY > 0.

C



          C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)


          The cosines of the plane rotations.

S



          S is COMPLEX*16 array, dimension (1+(N-1)*INCC)


          The sines of the plane rotations.

INCC



          INCC 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:

December 2016

Definition at line 109 of file zlartv.f.

Author

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