Re: Complex numbers. Help!

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From: Reg Edwards
Date: Tue, 23 Jun 1998 00:00

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Its quite simple really.

A complex number is of the form x + jy where j is the squareroot of minus
1.

Don't let j put you off because you will never have to work out what it is.
All you have to do is square it.

So j squared is minus 1.

It now becomes easy to multiply two complex numbers together as follows -

(a + jb)*(c + jd)  =  ac - bd + j(bc + ad) which is just another complex
number.

Think of j as a radioactive tracer which allows the "imaginary" components
to be kept track of in the course of a long calculation.

And thats all there is to it - well almost. But it's all very easy.
-- 
Reg  G4FGQ
http://www.btinternet.com/~g4fgq.regp

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From: "Reg Edwards" <g4fgq.regp@btinternet.com>
Subject: Re: Complex numbers. Help!
Date: 1998/06/23
Message-ID: <01bd9f1d$19766760$8c2e63c3@default>
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References: <6mh2ip$41b$6@heliodor.xara.net>
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Newsgroups: alt.comp.hello-world,alt.computer,alt.uu.math.misc,aus.computers,aus.computers.logic-prog,aus.mathematics,cern.computing

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