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- Newsgroups: sci.math
- Path: sparky!uunet!munnari.oz.au!cs.mu.OZ.AU!aet
- From: aet@mullian.ee.mu.OZ.AU (bert thompson)
- Subject: ALGEBRAIC NUMBER ARITHMETIC
- Message-ID: <aet.712408532@munagin>
- Keywords: algebraic numbers arithmetic
- Sender: news@cs.mu.OZ.AU
- Organization: Computer Science, University of Melbourne, Australia
- Date: Wed, 29 Jul 1992 11:15:32 GMT
- Lines: 39
-
- hi!
-
- i want to perform arithmetic on algebraic numbers.
-
- if i represent an algebraic number by an polynomial in integers
- and an interval in which is found the root of the polynomial
- corresponding to the represented number.
-
- so sqrt(2) might look like this:
-
- 2
- x - 2 = 0 , [1, 3/2]
-
-
- how would i perform the following operations:
- (returning a polynomial-interval pair)
-
- +
- -
- *
- /
- sqrt
- = (computable? my guess is yes.)
- and other operations you might think are worth mentioning...
-
- i would greatly appreciate any help.
- btw, if you can think of a better representation, that would be great too!
- btw^2, i suspect these operations will be inefficient^n as well.
- btw^3, references would be good.
-
- regards,
-
- bert.
-
- --------------------------------------------------------------------------------
- bert thompson aet@munagin.ee.mu.oz.au.
- SITEE school of information technology and electrical engineering
- university of melbourne
- --------------------------------------------------------------------------------
-