Quick Navigator

 Search Site Miscellaneous Server Agreement Year 2038 Credits
 zrot.f(3) LAPACK zrot.f(3)

zrot.f -

# SYNOPSIS

## Functions/Subroutines

subroutine zrot (N, CX, INCX, CY, INCY, C, S)

ZROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.

# Function/Subroutine Documentation

## subroutine zrot (integerN, complex*16, dimension( * )CX, integerINCX, complex*16, dimension( * )CY, integerINCY, double precisionC, complex*16S)

ZROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.
Purpose:
``` ZROT   applies a plane rotation, where the cos (C) is real and the
sin (S) is complex, and the vectors CX and CY 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 CY.  INCX <> 0.
```
CY
```          CY is COMPLEX*16 array, dimension (N)
On input, the vector Y.
On output, CY is overwritten with -CONJG(S)*X + C*Y.
```
INCY
```          INCY is INTEGER
The increment between successive values of CY.  INCX <> 0.
```
C
```          C is DOUBLE PRECISION
```
S
```          S is COMPLEX*16
C and S define a rotation
[  C          S  ]
[ -conjg(S)   C  ]
where C*C + S*CONJG(S) = 1.0.
```
Author:
Univ. of Tennessee
Univ. of California Berkeley
NAG Ltd.
Date:
September 2012
Definition at line 104 of file zrot.f.

# Author

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

Search for    or go to Top of page |  Section 3 |  Main Index

Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.