Re: Question on completeness of the qfminin() command on finding all vectors for a given positive definite symmetric matrix

[hermann@stamm-wilbrandt.de]

On 2024-03-04 23:31, American Citizen wrote:
> However when I actually used this to find all rational points < height
> 13, I found 18 points which were missing from the 49 which qfminim()
> gave + torsion points.
I ran into this pitfall as well for my application and asked on this 
list.
I learned from Bill that I just had to add the negative values to get 
all:

S=concat(S,-S);

You can visually see that in ℤ³ by clicking on the "S=concat(S,-S)" 
radio button bottom left:
https://stamm-wilbrandt.de/tqf_3D.2.gp.n_37.html

Regards,

Hermann.