Performs a linear transformation of a pair of complex vectors.
Syntax
call clacrt( n, cx, incx, cy, incy, c, s )
call zlacrt( n, cx, incx, cy, incy, c, s )
Include Files
- mkl.fi
Description
The routine performs the following transformation
where c, s are complex scalars and x, y are complex vectors.
Input Parameters
- n
INTEGER. The number of elements in the vectors cx and cy (n≥ 0).
- cx, cy
COMPLEX for clacrt
DOUBLE COMPLEX for zlacrt
Arrays, dimension (n).
Contain input vectors x and y, respectively.
- incx
INTEGER. The increment between successive elements of cx.
- incy
INTEGER. The increment between successive elements of cy.
- c, s
COMPLEX for clacrt
DOUBLE COMPLEX for zlacrt
Complex scalars that define the transform matrix
Output Parameters
- cx
On exit, overwritten with c*x + s*y .
- cy
On exit, overwritten with -s*x + c*y .