clacrt()

subroutine clacrt	(	integer	N,
		complex, dimension( * )	CX,
		integer	INCX,
		complex, dimension( * )	CY,
		integer	INCY,
		complex	C,
		complex	S
	)

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

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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

[in]	N	N is INTEGER The number of elements in the vectors CX and CY.
[in,out]	CX	CX is COMPLEX array, dimension (N) On input, the vector x. On output, CX is overwritten with c*x + s*y.
[in]	INCX	INCX is INTEGER The increment between successive values of CX. INCX <> 0.
[in,out]	CY	CY is COMPLEX array, dimension (N) On input, the vector y. On output, CY is overwritten with -s*x + c*y.
[in]	INCY	INCY is INTEGER The increment between successive values of CY. INCY <> 0.
[in]	C	C is COMPLEX
[in]	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.