subroutine clacrt (N, CX, INCX, CY, INCY, C, S)
CLACRT performs a linear transformation of a pair of complex vectors.
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 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
Definition at line 107 of file clacrt.f.
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