American Citizen on Tue, 05 Mar 2024 02:50:16 +0100
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Re: found my problem, subtle error occurring with insert into a set
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- To: pari-users@pari.math.u-bordeaux.fr
- Subject: Re: found my problem, subtle error occurring with insert into a set
- From: American Citizen <website.reader3@gmail.com>
- Date: Mon, 4 Mar 2024 17:50:11 -0800
- Delivery-date: Tue, 05 Mar 2024 02:50:16 +0100
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For a rank=3 curve, the ellpool program is running over 61x faster. I am
very pleased with this speedup
On 3/4/24 17:44, American Citizen wrote:
To all
More hours of painful troubleshooting step by step finally revealed
that I was making a subtle error, doing a set insert into a current
set, while operating ON that set.
I now get the 67 points for the congruent number curve of
[0,0,0,-1156,0] of height <= 13.
qfminim() command is correct, it is giving me 8 vectors, so I must
take the negative point also, giving 16 overall for the points of
infinite order. When I use the 3 torsion points for this curve, I
eventually come up to 67 points = 16*4 + 3 (torsion points).
Thank you for bearing with me on this troubleshooting, as my
reduce_to_basis algorithm showed that combinations NOT on the qfminin
vector list were occuring, but this was due to the negative point
(i.e. ellneg(e,pt))
I am happy now with the new rewrite of my ellpool(curve,basis_pts,
max_height) as it is running 8x as fast as my previous program for a
rank 2 curve.
Randall