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Re: distance from Easter Island to Chile

From: Emanuel Berg
Subject: Re: distance from Easter Island to Chile
Date: Sun, 20 Apr 2014 17:22:39 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)

Barry Margolin <address@hidden> writes:

> How accurate does your input have to be for that to
> be a significant?  I.e. if you're calculating the
> distance between two cities, and each city is 5 miles
> wide, the distance is +/- 10 miles depending on where
> in the two cities you decide to get the coordinates
> from. So if the error in the formula is 2 miles, it's
> less than the inaccuracy in the input, so the formula
> should be good enough.

Yes, let's make this crystal (ball) clear, this is an
implementation of a mathematical formula - if anyone
reading this is writing a school essay on geography,
*don't* use data from this tool :) The data is correct
but in a gross way.

I don't know what the professionals do to calculate
distances, but safe to say, they have more refined,
more specific, more empirical "down-to-earth" methods
(pardon the pun)!

I thought that was clear, but no harm, now it is.

underground experts united:

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