ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 06 Jul 2020 21:18:17 +0200exact computations with algebraic numbershttps://ask.sagemath.org/question/52362/exact-computations-with-algebraic-numbers/I'm trying to do exact computations with algebraic numbers. In particular, I know to expect integer answers like `1`, `0`, and `3` at the end of my computations, but I'm getting something slightly off.
I noticed that if I run
sage: r = sqrt(2)
sage: a = AA(r)
sage: b = AA(1/r)
sage: c = a*b
Then I get:
sage: c
1.000000000000000?
Is this being handled in the computer as exactly `1`? Otherwise, how can I do exact computations with algebraic numbers in Sage? I obtain the algebraic numbers I'm working with using `algdep()` to find a polynomial and `.roots(QQbar)` to find the roots of that polynomial.b897069Mon, 06 Jul 2020 21:18:17 +0200https://ask.sagemath.org/question/52362/Solving simultaneous boolean algebraic equationshttps://ask.sagemath.org/question/9875/solving-simultaneous-boolean-algebraic-equations/Hi,
I have been searching around for a method of solving and simplifying simultaneous boolean algebraic equations. So far I have found programs that allow the simplification of boolean algebraic expressions but non that can perform the task of solving simultaneous equations. Any help would be greatly appreciated.
Thank youJoshTue, 05 Mar 2013 01:38:12 +0100https://ask.sagemath.org/question/9875/