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GM7HUD > TECH 27.09.05 03:45l 35 Lines 1275 Bytes #999 (0) @ WW
BID : BD2793GM7HUD
Read: GUEST DL1LCA OE7FMI
Subj: Re: calculations.
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VK3ABK wrote:-
>
> I have seen one reply, from Andy, GM7HUD, (there must have been others!)
> and this would solve Geoff's problem. It may be of interest to know that
> this apparently simple theorem, named after Pythagorus, is not so simple.
>
> A mathematician, (which I am not) would demand proof that there is
> actually
> an answer to 'every' example of h^2 = b^2 + p^2. That is, does this apply
>
> to 'all' examples of three sides of a right angle triangle. We know from
> our limited experience that a 'correct' answer can be found and tested.
>
> But a mathematician will need 'a proof'! He would say that even if you try
> a thousand combinations, the next one may not yield a correct answer.
There are several proofs for Pythagoras.
One of the easiest to show is the Euclidean proof that uses simple
geometry.
It may be a simple to show but sadly does not fit the predemoninantly
text based world that is AX.25 packet. In which case a nice animated
version of this proof is found at
http://www.cut-the-knot.org/pythagoras/morey.shtml
You will need to have a Java enabled browser for this to work and is well
worth a visit.
A trawl of that infernal interweb will show many pages dealing with this
and many other basic maths concepts.
73 de Andy GM7HUD
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