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

NAME

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

SYNOPSIS

Functions/Subroutines


double precision function DZASUM (n, zx, incx)
DZASUM

Function/Subroutine Documentation

double precision function DZASUM (integer n, complex*16, dimension(*) zx, integer incx)

DZASUM

Purpose:

!>
!>    DZASUM takes the sum of the (|Re(.)| + |Im(.)|)'s of a complex vector and
!>    returns a double precision result.
!>

Parameters

N 

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

ZX

!>          ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
!>

INCX

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

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:

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

Definition at line 71 of file dzasum.f.

Author

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Version 3.12.0 LAPACK