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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/daxpy.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/daxpy.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/daxpy.f

SYNOPSIS

Functions/Subroutines


subroutine DAXPY (n, da, dx, incx, dy, incy)
DAXPY

Function/Subroutine Documentation

subroutine DAXPY (integer n, double precision da, double precision, dimension(*) dx, integer incx, double precision, dimension(*) dy, integer incy)

DAXPY

Purpose:

!>
!>    DAXPY 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)
!>

DA

!>          DA is DOUBLE PRECISION
!>           On entry, DA specifies the scalar alpha.
!>

DX

!>          DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
!>

INCX

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

DY

!>          DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) )
!>

INCY

!>          INCY is INTEGER
!>         storage spacing between elements of DY
!>

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 daxpy.f.

Author

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Version 3.12.0 LAPACK