Saluton!

* Brian Candler; 2003-07-19, 11:38 UTC:
> The characteristic of this sequence is that each number differs
> from the previous one by exactly one bit.
> 
> 0000
> 0001
> 0011
> 0010
> 0110
> 0111
> 0101
> 0100
> 1100
>
> It has important practical applications: e.g. devices which detect
> the rotational position of a shaft.

I think it is worth to complete the series:

1101
1111
1110
1010
1011
1001
1000
....

0000
0001

This shows that the representation of 15 and that of 0 only differ in
one digit as well - this explains why a Gray code is especially
useful for periodic movements like rotations.

Gis,

Josef 'Jupp' Schugt
-- 
N'attribuez jamais la malice ce que l'incompñÕence explique !
-- NapolñÐn