Sorry, here's the definition of Q:

Q = E.random_element()

Victor

On Aug 3, 8:45 pm, Simon King <[email protected]> wrote:
> Hi!
>
> On 4 Aug., 02:31, VictorMiller <[email protected]> wrote:
>
> > Here are the commands I used:
>
> > qq = [z for z in primes(100000,100000+100) if (z%12) == 11]
> > E = EllipticCurve(j=GF(qq[0])(1728))
> > # E has qq[0]+1 points over GF(qq[0])
> > factor(qq[0]+1)
> > P = ((qq[0]+1)//3)*E.random_element()
> > K = [E(0),P,-P]
> > phi = E.isogeny(K)
>
> No Maxima up  to here (tested by quitting Sage)...
>
> > for i in xrange(20): timeit('phi(Q)')
>
> But also no Q. How is Q defined?
>
> Regards,
> Simon
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