Egyptian-Fraction Expansions Of REALS
Thomas Baruchel
thomas.baruchel at laposte.net
Fri Jul 30 20:05:52 CEST 2004
On Tue, Jan 20, 2004 at 11:31:13PM -0500, Jud McCranie wrote:
> No, don't write it as 1+1+1. For the sequence, make the first term the
> integer part and continue with the denominators. For one thing, the
> Egyptians didn't do that. Secondly, the sequence could start with a very
> long string of 1s. (Alternatively, skip the integer part altogether.)
Right. Besides, the initial motivation for writing 1+1+1 was not good,
because the general mind of egyptian fractions is to avoid using
twice a fraction with identical denominator: 1/3+1/3 is forbidden.
Just starting with "3+" is much better than "1+1+1" which would certainly
not be "more egyptian"...
--
« nous devons agir comme si la chose qui peut-être ne sera pas devait
être » (Kant, Métaphysique des moeurs, doctrine du droit, II conclusion)
Thomas Baruchel <thomas.baruchel at laposte.net>
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