zlacrt.f(3) LAPACK zlacrt.f(3)
NAME
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.
Version 3.4.2 Tue Sep 25 2012 zlacrt.f(3)
