NAME

srot - Apply a Given’s rotation constructed by SROTG. 

SYNOPSIS

SUBROUTINE SROT (N, X, INCY, Y, INCY, C, S)

INTEGER INCX, INCY, N

REAL    C, S, X( ∗ ), Y( ∗ )

#include <sunperf.h>

void srot(int n, float ∗sx, int incx, float ∗sy, int incy, float c, float s) ;

PURPOSE

SROT - Apply a Given’s rotation constructed by SROTG. 
 

PARAMETERS

N - INTEGER. 
On entry, N specifies the number of elements in the vector.  N must be at least one for the subroutine to have any visible effect.  Unchanged on exit.

X - REAL             array of DIMENSION at least
( 1 + ( n - 1 )∗abs( INCX ) ). Before entry, the incremented array X must contain the vector x. Unchanged on exit.

INCX - INTEGER. 
On entry, INCX specifies the increment for the elements of X. INCX must not be zero. Unchanged on exit.

Y - REAL             array of DIMENSION at least
( 1 + ( m - 1 )∗abs( INCY ) ). On entry, the incremented array Y must contain the vector y. On exit, Y is overwritten by the updated vector y.

INCY - INTEGER. 
On entry, INCY specifies the increment for the elements of Y. INCY must not be zero. Unchanged on exit.

C, S   - REAL On entry, the rotation values constructed by SROTG.  Unchanged on exit. 

SunOS WorkShop_5.0  —  Last change: 10 Dec 1998