NAME

SSCAL - scales a vector by a constant

SYNOPSIS

SUBROUTINE SSCAL(N,SA,SX,INCX)

REAL SA INTEGER INCX,N REAL SX(*)

PURPOSE

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

FURTHER DETAILS

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(*)