Hello Michel,

On Sat, May 16, 2009 at 2:59 AM, Michel <michel.vandenbe...@uhasselt.be> wrote:
>
> var('Q')
> solve(Q*sqrt(Q^2 + 2) - 1,Q)
>
> yields
>
> [Q == 1/sqrt(Q^2 + 2)]
>
> Not what I was looking for!

In Sage 4.0 which will be out in a few days, I added support for
Maxima's to_poly_solve function which will handle your problem.
Here's a sample session from my tree:

sage: var('Q')
Q
sage: solve(Q*sqrt(Q^2 + 2) - 1,Q)
[[Q == 1/sqrt(-sqrt(2) + 1)], [Q == 1/sqrt(sqrt(2) + 1)]]

--Mike

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