So what exactly is a complex number?

[Bjoern Schliessmann]

Grzegorz S?odkowicz wrote:
> I believe vectors can only be added if they have the same point of
> application. 

That may be true in physical observations, but doesn't make "point
of application" a vector property. If you had it as property, you
could never say that in a force field the force was equal at two
points.

This is also contradicted by the fact that complex numbers are used
to represent vectors. A complex number only has a "direction" (in a
plane) and "length". Not more.

> The result is then applied to the same point. 

To which points "apply" velocity vectors, unit vectors, or axial
vectors (like angular velocity)?

Regards,


Björn

-- 
BOFH excuse #354:

Chewing gum on /dev/sd3c