1ZLACRT(1)           LAPACK auxiliary routine (version 3.2)           ZLACRT(1)
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NAME

6       ZLACRT - performs the operation   ( c s )( x ) ==> ( x )  ( -s c )( y )
7       ( y )  where c and s are complex and the vectors x and y are complex
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SYNOPSIS

10       SUBROUTINE ZLACRT( N, CX, INCX, CY, INCY, C, S )
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12           INTEGER        INCX, INCY, N
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14           COMPLEX*16     C, S
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16           COMPLEX*16     CX( * ), CY( * )
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PURPOSE

19       ZLACRT performs the operation
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ARGUMENTS

22       N       (input) INTEGER
23               The number of elements in the vectors CX and CY.
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25       CX      (input/output) COMPLEX*16 array, dimension (N)
26               On input, the vector x.  On output, CX is overwritten with  c*x
27               + s*y.
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29       INCX    (input) INTEGER
30               The increment between successive values of CX.  INCX <> 0.
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32       CY      (input/output) COMPLEX*16 array, dimension (N)
33               On input, the vector y.  On output, CY is overwritten with -s*x
34               + c*y.
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36       INCY    (input) INTEGER
37               The increment between successive values of CY.  INCY <> 0.
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39       C       (input) COMPLEX*16
40               S       (input) COMPLEX*16 C and S define the matrix [   C    S
41               ].  [ -S   C  ]
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45 LAPACK auxiliary routine (versionNo3v.e2m)ber 2008                       ZLACRT(1)