# clacrt.f - Man Page

## 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 (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.

**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:**December 2016

Definition at line 107 of file clacrt.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page clacrt(3) is an alias of clacrt.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK