Re: Bug in EXCEL v. 2.2, and a flame

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Article #2310

#2310

From: Bill Jefferys
Date: Wed, 02 Aug 1989 19:25

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In article <3531@mentor.cc.purdue.edu> ags@mentor.cc.purdue.edu (Dave Seaman) writes:
#First of all, a simple Taylor series expansion of f(x) = sqrt(x) about x=1
#should show you that the square root of .999975 is .9999875 with an error on
#the order of 10^(-10).  But since it was claimed that Excel 2.2 on a Mac II
#did not agree, I decided to check it out.

This is NOT what I claimed. I said that the result on the Mac II is
correct (when you widen the field to 16 digits). Another poster
showed that on the SE/30 the answer is correct. APPARENTLY THE BUG
ONLY SHOWS UP ON A MACHINE WITHOUT THE COPROCESSOR. IT IS DEFINITELY
THERE ON A MAC+.

Bill Jefferys

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!ut-emx!bill
From: bill@ut-emx.UUCP (Bill Jefferys)
Newsgroups: comp.sys.mac
Subject: Re: Bug in EXCEL v. 2.2, and a flame
Message-ID: <16497@ut-emx.UUCP>
Date: 2 Aug 89 19:25:58 GMT
References: <MYp9wBy00WB-8EBFJb@andrew.cmu.edu> <959@rex.cs.tulane.edu> <3531@mentor.cc.purdue.edu>
Reply-To: bill@emx.UUCP (Bill Jefferys)
Distribution: usa
Organization: UTexas Computation Center, Austin, Texas
Lines: 13

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