[Axiom-developer] Re: A Collection of Algebraic Identities

[TimDaly]

On Jun 4, 12:35 pm, address@hidden wrote:
> Hello all,
>
> Here's a nice identity:
>
> (p+q)^4 + (r-s)^4 = (p-q)^4 + (r+s)^4
>
> where {p,q,r,s} = {a^7+a^5-2a^3+a, 3a^2, a^6-2a^4+a^2+1, 3a^5}
>
> For similar stuff, you may be interested in "A Collection of Algebraic
> Identities":
>
> http://sites.google.com/site/tpiezas/Home
>
> It's a 200+ page book I wrote and made available there.  It starts
> with the basics with 2nd powers and goes up to 8th and higher powers.
> Enjoy.
>
> - Titus

on page http://sites.google.com/site/tpiezas/002 you state:

[55,48,73}, {45,28,43}, ....

as pythagorean triples

but it should read

{55,48,73}, {45,28,53} ....

Tim Daly
address@hidden