Hans N. Beck wrote:
...
>So in all cases, we have to deal with positions. And how are they
>defined exactly ? A mathematican would use a free defined but
>then fixed coordinate system. A child would say "next to the
>place where I go to school" or "first I go around this and along
>there and there it is". Cats would reference it's accoustic
>picture in mind. For convinience I would call these methods
>
>a) geometrical (y=f(x,y,z...))
>b) topological (next to...)
>c) behavoural (move here, then go right....)
>d) pattern matching (the cats acoustic picture)
>
>navigation methods.
Although, it may be implied in your description, it is important to also talk about orientation, or heading, in addition to just position. Orientation also has these different frames of reference.
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