zlacrt.f man page

zlacrt.f —

Synopsis

Functions/Subroutines

subroutine zlacrt (N, CX, INCX, CY, INCY, C, S)
ZLACRT performs a linear transformation of a pair of complex vectors.

Function/Subroutine Documentation

subroutine zlacrt (integerN, complex*16, dimension( * )CX, integerINCX, complex*16, dimension( * )CY, integerINCY, complex*16C, complex*16S)

ZLACRT performs a linear transformation of a pair of complex vectors.

Purpose:

ZLACRT performs the operation

   (  c  s )( x )  ==> ( x )
   ( -s  c )( y )      ( y )

where c and s are complex and the vectors x and y 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 CX.  INCX <> 0.

CY

CY is COMPLEX*16 array, dimension (N)
On input, the vector y.
On output, CY is overwritten with -s*x + c*y.

INCY

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

C

C is COMPLEX*16

S

S is COMPLEX*16
C and S define the matrix
   [  C   S  ].
   [ -S   C  ]

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 106 of file zlacrt.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Sat Nov 16 2013 Version 3.4.2 LAPACK