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- From: israel@unixg.ubc.ca (Robert B. Israel)
- Subject: Re: dividing 100 digit nos.?
- Message-ID: <israel.714851865@unixg.ubc.ca>
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- Organization: University of British Columbia, Vancouver, B.C., Canada
- References: <1992Aug25.174016.1@camins.camosun.bc.ca> <17g3f1INN220@hilbert.math.ksu.edu> <1992Aug26.145600.9346@linus.mitre.org>
- Date: Wed, 26 Aug 1992 17:57:45 GMT
- Lines: 38
-
- In <1992Aug26.145600.9346@linus.mitre.org> bs@gauss.mitre.org (Robert D. Silverman) writes:
-
- >In article <17g3f1INN220@hilbert.math.ksu.edu> bennett@math.ksu.edu (Andy Bennett) writes:
- >>comptec91065@camins.camosun.bc.ca writes:
- >>
- >>> Can you help me locate the easiest method of dividing
- >>> integers of at least 100 digits (possibly up to 4300 digits) ?
- >>
- >>Use UBASIC. This is a public domain basic developed by Yuji Kida in Japan
- >>with full support for integers up to about 2500 digits. It also comes with
- >>state of the art number theory algorithms already coded (for primality
- >
- >With all due respect: [this is not a flame]
-
- >I do not believe that you answered the question that was asked, although
- >you may have answered what the poster *meant to ask*.
-
- >What was asked about was the easiest *method* for doing division on 100
- >digit integers. That information can be found in Knuth Vol. 2
- >The poster may have wanted to know how it is done, rather than wanted
- >a black box to do it.
-
- >I may be wrong, in that the poster was really asking where he could
- >find software to perform what he wanted, but in absence of other information
- >I answer what is asked, rather than try to fathom what is *meant*.
- >
- What is easier: programming an algorithm from Knuth, or using software
- that already exists? Without any other clues from the poster, I'd assume
- that the second method was acceptable. Someone who wanted to be directed
- to Knuth could have written "algorithm" rather than "method", or
- "an efficient" rather than "the easiest". And I suspect that someone
- who is really capable of implementing arbitrary-precision arithmetic
- would already know about Knuth.
- --
- Robert Israel israel@math.ubc.ca
- Department of Mathematics or israel@unixg.ubc.ca
- University of British Columbia
- Vancouver, BC, Canada V6T 1Y4
-