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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!paladin.american.edu!auvm!UHCCVX.UHCC.HAWAII.EDU!WENDELL
- Mail-System-Version: <VAX-MM(235)+TOPSLIB(133)+PONY(228)@UHCCVX.UHCC.HAWAII.EDU>
- Message-ID: <726298566.488485.WENDELL@UHCCVX.UHCC.HAWAII.EDU>
- Newsgroups: bit.listserv.stat-l
- Date: Wed, 6 Jan 1993 00:37:55 -0500
- Sender: STATISTICAL CONSULTING <STAT-L@MCGILL1.BITNET>
- From: John Wendell <WENDELL@UHCCVX.UHCC.HAWAII.EDU>
- Subject: Textbook formulas and computers
- Lines: 19
-
- Well, since the spreadsheet question has resurfaced, I'll show my
- ignorance and shoot this question to the list. I had great fun over
- the summer learning Maple and have been using it to calculate
- statisistics based on textbook and journal formulas (you know, alot of
- stuff in the journals isn't available on SAS etc., particularly the
- Bayesian stuff), but I'm always careful to use it in it's "exact" mode
- (I avoid decimal points in my data, ie. I put in 1/100 instead of
- .001). From what my limited knowlege of how the program actually
- works, I think I cann't possibly have any floating point type errors
- in this mode (although it can take a lot of time to run and likes to
- eat disk space in this mode.) Once the calculations are done I'm
- often left with a huge and bizzare fraction or polynomial to which I
- apply evalf(",10) to reduce it to decimal form. Am I really avoiding
- computational pitfalls by doing it this way or am I just fooling
- myself.
-
- Aloha, - John WENDELL@UHCCVX.UHCC.HAWAII.EDU.internet (Or just
- WENDELL@UHCCVX.bitnet)
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