Scroll to navigation

clacrt.f(3) LAPACK clacrt.f(3)

NAME

clacrt.f -

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 (integerN, complex, dimension( * )CX, integerINCX, complex, dimension( * )CY, integerINCY, complexC, complexS)

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:
September 2012
Definition at line 106 of file clacrt.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.
Wed Oct 15 2014 Version 3.4.2