BLAS/SRC/saxpy.f(3) Library Functions Manual BLAS/SRC/saxpy.f(3)

BLAS/SRC/saxpy.f


subroutine saxpy (n, sa, sx, incx, sy, incy)
SAXPY

SAXPY

Purpose:

    SAXPY constant times a vector plus a vector.
    uses unrolled loops for increments equal to one.

Parameters

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

SY

          SY is REAL array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

INCY

          INCY is INTEGER
         storage spacing between elements of SY

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:

     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)

Definition at line 88 of file saxpy.f.

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