clacrt.f (3) - Linux Man Pages
subroutine clacrt (integerN, complex, dimension( * )CX, integerINCX, complex, dimension( * )CY, integerINCY, complexC, complexS)
CLACRT performs a linear transformation of a pair of complex vectors.
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.
N is INTEGER The number of elements in the vectors CX and CY.
CX is COMPLEX array, dimension (N) On input, the vector x. On output, CX is overwritten with c*x + s*y.
INCX is INTEGER The increment between successive values of CX. INCX <> 0.
CY is COMPLEX array, dimension (N) On input, the vector y. On output, CY is overwritten with -s*x + c*y.
INCY is INTEGER The increment between successive values of CY. INCY <> 0.
C is COMPLEX
S is COMPLEX C and S define the matrix [ C S ]. [ -S C ]
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
- September 2012
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