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- Path: sparky!uunet!contex!marvin.contex.com!frank
- From: frank@marvin.contex.com (Frank Perdicaro)
- Newsgroups: comp.sys.sgi
- Subject: Re: Numerical errors with xcalc?
- Message-ID: <2878@contex.contex.com>
- Date: 18 Aug 92 15:03:44 GMT
- References: <1992Aug18.043858.18153@cs.yale.edu>
- Sender: news@contex.contex.com
- Distribution: usa
- Organization: Xyvision Design Systems
- Lines: 42
-
- In article <1992Aug18.043858.18153@cs.yale.edu> dave@doctor.chem.yale.edu (David Maxwell) writes:
- >Hello folks,
- >
- >This may be better answer for another group, but I don't know which one.
- >Anyhow, I was wondering why xcalc stores numbers with only 5 decimal
- >places valid. I was doing the following calculation in rpn mode :
- > ...
- >Is there any way to get better precision out of xcalc?
- >
- >Dave Maxwell (dave@doctor.chem.yale.edu)
-
- I do not like to complain too much, because I am generally quite
- happy with the SGI machines that I use, but I must agree with this
- guy.
-
- With NeWS, we got a calculator that could neither add, subtract,
- multiply or divide. With the coming of X, people said 'xcalc is
- great! best thing ever'. Withing 25 seconds of using it the first
- time, I found two really bad precision errors. I complained to the
- TAC, and on the net, and was told to take a walk.
-
- Come on, this is a sophmore year, semester's end project! Build a
- calculator that uses BCD and can intelligently say "I have an error".
- I realize the difficulties associated with the transcendental
- functions, but this still is not that difficult. There is really
- no excuse to have such a bad calculator. It would be better to delete
- it from the distribution than to still ship it.
-
- Sombody out there at SGI will probably flame me for this, but I have
- been around and around for YEARS on this exact same issue, and SGI
- still ships a bad calculator. It grew old long ago....
-
- I use my $20 Radio Shaft calculator, or the one built into my
- terminal... but I still like my Irides.
-
-
-
- --
- Frank E Perdicaro, Systems Admin, etc. Xyvision Color Systems
- Legalize guns, drugs and cash...today. 101 Edgewater Drive
- inhouse: frank@marvin, x5572 Wakefield MA
- outhouse: frank@contex.com, 617-245-4100x5572 018801285
-