zrot.f man page

zrot.f —

Synopsis

Functions/Subroutines

subroutine zrot (N, CX, INCX, CY, INCY, C, S)
ZROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.

Function/Subroutine Documentation

subroutine zrot (integerN, complex*16, dimension( * )CX, integerINCX, complex*16, dimension( * )CY, integerINCY, double precisionC, complex*16S)

ZROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.

Purpose:

ZROT   applies a plane rotation, where the cos (C) is real and the
sin (S) is complex, and the vectors CX and CY are complex.

Parameters:

N

N is INTEGER
The number of elements in the vectors CX and CY.

CX

CX is COMPLEX*16 array, dimension (N)
On input, the vector X.
On output, CX is overwritten with C*X + S*Y.

INCX

INCX is INTEGER
The increment between successive values of CY.  INCX <> 0.

CY

CY is COMPLEX*16 array, dimension (N)
On input, the vector Y.
On output, CY is overwritten with -CONJG(S)*X + C*Y.

INCY

INCY is INTEGER
The increment between successive values of CY.  INCX <> 0.

C

C is DOUBLE PRECISION

S

S is COMPLEX*16
C and S define a rotation
   [  C          S  ]
   [ -conjg(S)   C  ]
where C*C + S*CONJG(S) = 1.0.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 104 of file zrot.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

zrot(3) is an alias of zrot.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK