!>
!>    SSCAL scales a vector by a constant.
!>    uses unrolled loops for increment equal to 1.
!> 

N

!>          N is INTEGER
!>         number of elements in input vector(s)
!> 

SA

!>          SA is REAL
!>           On entry, SA specifies the scalar alpha.
!> 

SX

!>          SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
!> 

INCX

!>          INCX is INTEGER
!>         storage spacing between elements of SX
!> 

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

!>
!>     jack dongarra, linpack, 3/11/78.
!>     modified 3/93 to return if incx .le. 0.
!>     modified 12/3/93, array(1) declarations changed to array(*)
!>