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65 lines
2.0 KiB
Plaintext
65 lines
2.0 KiB
Plaintext
NAME
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hmean - harmonic mean of a number of values
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SYNOPSIS
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hmean(x_1, x_2, ...)
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TYPES
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x_1, ... arithmetic or list
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return determined by types of arguments, or null
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DESCRIPTION
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The null value is returned if there are no arguments.
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If there are n non-list arguments x_1, x_2, ... and the
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required operations are defined, hmean(x_1, x_2, ...) returns the
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value of:
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n/(inverse(x_1) + inverse(x_2) + ... + inverse(x_n)).
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If an argument x_i is a list as defined by list(y_1, ..., y_m)
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this is treated as if in (x_1, x_2, ...), x_i is replaced by
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y_1, ..., y_m.
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EXAMPLE
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; c = config("mode", "frac")
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; print hmean(1), hmean(1,2), hmean(1,2,3), hmean(1,2,3,4), hmean(1,2,0,3)
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1 4/3 18/11 48/25 0
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LIMITS
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The number of arguments is not to exceed 1024.
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LINK LIBRARY
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none
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SEE ALSO
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avg
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## Copyright (C) 1999-2006 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## @(#) $Revision: 30.1 $
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## @(#) $Id: hmean,v 30.1 2007/03/16 11:10:42 chongo Exp $
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## @(#) $Source: /usr/local/src/bin/calc/help/RCS/hmean,v $
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##
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## Under source code control: 1995/12/18 03:30:59
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## File existed as early as: 1995
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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