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From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: sci.math,sci.math.stat,comp.lang.c
Subject: Re: Standard Deviation Formula
Keywords: standard deviation formula
Message-ID: <9894@smoke.BRL.MIL>
Date: 22 Mar 89 03:41:13 GMT
References: <1187@infmx.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

In article <1187@infmx.UUCP> chuckd@infmx.UUCP (Charles Droukas) writes:
>I am in need of the standard deviation formula ...

WARNING:  The usual textbook formula is not good computationally,
as it involves summing lots of terms each of which is based on the
subtraction of two nearly equal quantities.