On Thu, Mar 25, 2021 at 11:44 PM Ray Andrews <rayandrews@xxxxxxxxxxx
<mailto:rayandrews@xxxxxxxxxxx>> wrote:
On 2021-03-25 1:40 p.m., Lawrence Velázquez wrote:
>
> The bad news is that *all* your figures -- your numerators, Brett's
> numerators, and the denominators -- are actually incorrect for
> level=15 and higher.
Sheesh, what gives? Seems no accuracy beyond 15 digits?
Indeed. 64-bit floating point numbers usually have 15.95 decimal
digits of precision. Depending on the compiler and how you write your
code, you might get higher precision but in practice many projects
turn this off because having borderline non-deterministic results of
computation sucks.