Re: Computing tables
Subject: Re: Computing tables
From: Richard B. Emerson (navsys@XXX.XXX)
Date: Fri Sep 10 1999 - 11:37:13 EDT
Tony writes:
[...]
> > My question is directed towards knowing
> > just how accurate the tables are in terms of identifying systematic
> > errors (e.g., rounding errors which propigate forward through a
> > series).
>
> This would be academically interesting but of little practical value in
> marine navigation, IMO. In any event, I'll leave that to the math heads at
> JPL/NASA/DOD who may have greater needs. :-)
I'm not so sure that's the case and, in fact, that's precisely the
reason for raising the question. I've seen a few people posting about
using their own "homebrewed" tables and I'm asking how those tables
are verified. Certainly one "quick and dirty" approach is to compare
results from different tables but it's not unknown for even the pros
to make mistakes on occasion. So, once again, I'll ask those who've
either re-computed their own tables or otherwise adopted techniques
using tables outside of the HO "family", how do you verify your
tables?
Rick
S/V One With The Wind, Baba 35
