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NAME
    avg - average (arithmetic) mean of values

SYNOPSIS
    avg(x_1, x_2, ...)

TYPES
    x_1, ...	arithmetic or list

    return	as determined by types of items averaged

DESCRIPTION
    If there are n non-list arguments x_1, x_2, ..., x_n,
    for which the required additions and division by n are defined,
    avg(x_1, x_2, ..., x_n) returns the value of:

	(x_1 + x_2 + ... + x_n)/n.

    If the x_i are real, the result will be a real number; if the
    x_i are real or complex numbers, the result will be a real or complex
    number.  If the x_i are summable matrices the result will be a matrix
    of the same size (e.g. if the x_i are all 3 x 4 matrices with real
    entries, the result will be a 3 x 4 matrix with real entries).

    If an argument x_i is list-valued, e.g. list(y_1, y_2, ...), this
    is treated as contributing y_1, y_2, ... to the list of items to
    be averaged.

EXAMPLE
    ; print avg(1,2,3,4,5), avg(list(1,2,3,4,5)), avg(1,2,list(3,4,5))
    3 3 3

    ; mat x[2,2] = {1,2,3,4}
    ; mat y[2,2] = {1,2,4,8}
    ; avg(x,y)

    mat [2,2] (4 elements, 4 nonzero):
      [0,0] = 1
      [0,1] = 2
      [1,0] = 3.5
      [1,1] = 6

LIMITS
   The number of arguments is not to exceed 1024.

LINK LIBRARY
    none

SEE ALSO
    hmean

## Copyright (C) 1999-2006  Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: avg,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/bin/calc/help/RCS/avg,v $
##
## Under source code control:	1994/09/25 20:22:31
## File existed as early as:	1994
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/