zlacrt.f

Section: LAPACK (3)
Updated: Tue Nov 14 2017
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NAME

zlacrt.f  

SYNOPSIS


 

Functions/Subroutines


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

Function/Subroutine Documentation

 

subroutine zlacrt (integer N, complex*16, dimension( * ) CX, integer INCX, complex*16, dimension( * ) CY, integer INCY, complex*16 C, complex*16 S)

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:

December 2016

Definition at line 107 of file zlacrt.f.  

Author

Generated automatically by Doxygen for LAPACK from the source code.

 

Index

NAME
SYNOPSIS
Functions/Subroutines
Function/Subroutine Documentation
subroutine zlacrt (integer N, complex*16, dimension( * ) CX, integer INCX, complex*16, dimension( * ) CY, integer INCY, complex*16 C, complex*16 S)
Author