drotm (3p)

Name

drotm - Apply a Gentleman's modified Given's rotation constructed by SROTMG.

Synopsis

SUBROUTINE DROTM(N, X, INCX, Y, INCY, PARAM)

INTEGER N, INCX, INCY
DOUBLE PRECISION X(*), Y(*), PARAM(*)

SUBROUTINE DROTM_64(N, X, INCX, Y, INCY, PARAM)

INTEGER*8 N, INCX, INCY
DOUBLE PRECISION X(*), Y(*), PARAM(*)




F95 INTERFACE
SUBROUTINE ROTM(N, X, INCX, Y, INCY, PARAM)

INTEGER :: N, INCX, INCY
REAL(8), DIMENSION(:) :: X, Y, PARAM

SUBROUTINE ROTM_64(N, X, INCX, Y, INCY, PARAM)

INTEGER(8) :: N, INCX, INCY
REAL(8), DIMENSION(:) :: X, Y, PARAM




C INTERFACE
#include <sunperf.h>

void drotm(int n, double *x, int incx,  double  *y,  int  incy,  double
*param);

void  drotm_64(long n, double *x, long incx, double *y, long incy, dou-
ble *param);

Description

Oracle Solaris Studio Performance Library                            drotm(3P)



NAME
       drotm  -  Apply  a Gentleman's modified Given's rotation constructed by
       SROTMG.


SYNOPSIS
       SUBROUTINE DROTM(N, X, INCX, Y, INCY, PARAM)

       INTEGER N, INCX, INCY
       DOUBLE PRECISION X(*), Y(*), PARAM(*)

       SUBROUTINE DROTM_64(N, X, INCX, Y, INCY, PARAM)

       INTEGER*8 N, INCX, INCY
       DOUBLE PRECISION X(*), Y(*), PARAM(*)




   F95 INTERFACE
       SUBROUTINE ROTM(N, X, INCX, Y, INCY, PARAM)

       INTEGER :: N, INCX, INCY
       REAL(8), DIMENSION(:) :: X, Y, PARAM

       SUBROUTINE ROTM_64(N, X, INCX, Y, INCY, PARAM)

       INTEGER(8) :: N, INCX, INCY
       REAL(8), DIMENSION(:) :: X, Y, PARAM




   C INTERFACE
       #include <sunperf.h>

       void drotm(int n, double *x, int incx,  double  *y,  int  incy,  double
                 *param);

       void  drotm_64(long n, double *x, long incx, double *y, long incy, dou-
                 ble *param);



PURPOSE
       drotm Apply a Given's rotation constructed by SROTMG.


ARGUMENTS
       N (input)
                 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 (input/output)
                 ( 1 + ( n - 1 )*abs( INCX ) ).   On  entry,  the  incremented
                 array  X must contain the vector x. On exit, X is overwritten
                 by the updated vector x.


       INCX (input)
                 On entry, INCX specifies the increment for the elements of X.
                 INCX must not be zero.  Unchanged on exit.


       Y (input/output)
                 (  1  +  (  n - 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 (input)
                 On entry, INCY specifies the increment for the elements of Y.
                 INCY must not be zero.  Unchanged on exit.


       PARAM (input)
                 On  entry,  the  rotation  values  constructed   by   SROTMG.
                 Unchanged on exit.




                                  7 Nov 2015                         drotm(3P)