Simplifying expressions involving radicals

"Alasdair McAndrew" <[email protected]>
Newsgroups gmane.comp.mathematics.axiom.user
Message-ID <[email protected]>
Here's my situation:

a:=2^(1/3)+4^(1/3)
p(x)==x^3-6*x-6

I'd like p(a) to return zero; which it doesn't (although p(a::Float) returns
0.0).  How can I do this?

Thanks,
Alasdair

_______________________________________________
Axiom-mail mailing list
[email protected]
http://lists.nongnu.org/mailman/listinfo/axiom-mail
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.