clacrt.f man page

clacrt.f —

Synopsis

Functions/Subroutines

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

Function/Subroutine Documentation

subroutine clacrt (integerN, complex, dimension( * )CX, integerINCX, complex, dimension( * )CY, integerINCY, complexC, complexS)

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

Purpose:

CLACRT 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 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 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

S

S is COMPLEX
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 clacrt.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Sat Nov 16 2013 Version 3.4.2 LAPACK