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zlacrt.f(3) LAPACK zlacrt.f(3)

zlacrt.f -


subroutine zlacrt (N, CX, INCX, CY, INCY, C, S)
 
ZLACRT performs a linear transformation of a pair of complex vectors.

ZLACRT performs a linear transformation of a pair of complex vectors.
Purpose:
 ZLACRT 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*16 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*16 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*16
S
          S is COMPLEX*16
          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 zlacrt.f.

Generated automatically by Doxygen for LAPACK from the source code.
Sat Nov 16 2013 Version 3.4.2

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