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Date:   Thu, 25 Feb 2010 18:53:11 -0500
Reply-To:   "Fehd, Ronald J. (CDC/CCHIS/NCPHI)" <rjf2@CDC.GOV>
Sender:   "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:   "Fehd, Ronald J. (CDC/CCHIS/NCPHI)" <rjf2@CDC.GOV>
Subject:   Re: Sum of 25.47 and -25.47 is not equal to zero
In-Reply-To:   <399997.82598.qm@web52505.mail.re2.yahoo.com>
Content-Type:   text/plain; charset=iso-8859-1

see also this page for code showing denominators from 1 to 19

Passing Real Numbers as Macro Variables

Using SymputX to Convert Real Numbers to Macro Variables

http://tinyurl.com/yes6hr5 for this page:

http://www.sascommunity.org/wiki/Passing_Real_Numbers_as_Macro_Variables

> -----Original Message----- > From: owner-sas-l@listserv.uga.edu [mailto:owner-sas- > l@listserv.uga.edu] On Behalf Of Wei Wang > Sent: Thursday, February 25, 2010 5:26 PM > To: SAS-L@LISTSERV.UGA.EDU > Subject: Sum of 25.47 and -25.47 is not equal to zero > > Hi, guys, > > The sum of 25.47 and -25.47 is equal to 3.5527E-15, not zero. > Accordingly, the percentage is a small number (25.47/3.5527E-15 = > 7.1692E15) instead of missing. > > Anyone knows why this happens? > > Thanks, > > Wei > > >

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