So what exactly is a complex number?

richyjsm at richyjsm at
Mon Sep 3 14:07:21 CEST 2007

On Sep 2, 6:13 am, Grzegorz S odkowicz <jerg... at> wrote:

> In fact, a proper vector in physics has 4 features: point of
> application, magnitude, direction and sense.

so whats the "point of application" of the sum of two vectors?  Do

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