Bill Allombert on Fri, 26 Jan 2024 19:16:31 +0100


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Re: rational matrices 

On Fri, Jan 26, 2024 at 09:58:35AM -0800, William Jagy wrote:
> Dear Pari-users,
>        My name is Will Jagy.
>        I would like to know whether two commands,
> 
> qfgaussred()
> qfsign()
> 
> work entirely with integers and rational numbers when given a square
> symmetric matrix of integers, so that no numerical errors are introduced.
> 

Yes, they use rational arithmetic.

Cheers,
Bill