Re: Plus/minus square roots?


"Dirk Van de moortel" <dirkvandemoortel@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote
in message news:qleve.129927$BE6.7120942@xxxxxxxxxxxxxxxxxxxxxxxx
.
>
> Sometimes it is said (in an even more sloppy way) that
> negative numbers have a square root as well, and they
> say it to introduce the complex numbers.

and just to add that....

At first glance complex numbers seem useless and you wonder why they are
needed, but it turns out complex numbers (and the mathematical rules that go
with them) have many real world applications - in Electronics for example.


.

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