1. ## ABCDEF

A.BAC - F.BAC = A
A.BAC x F.BAC = A
A - F.BAC = F.DCE
A - F.DCE = F.BAC
F.BAC x F.BAC = F.DCE

What makes these numbers so special?

Jerry

2. ## Re: ABCDEF

I'm not sure what is special about <span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>168320</font color=yellow></span hi> . Any hints?

3. ## Re: ABCDEF

<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>

Well done Drew. Now that is the issue!

Why is 0.618 and 0.382 so special?

I don't want to give too many clues away at the moment but a famous artist/painter/inventor maybe involved.

</font color=yellow></span hi>

4. ## Re: ABCDEF

Ah - so that's why I couldn't solve it! I was trying for an exact solution and concluded that it wasn't possible. The magic words are

<center><span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow><big>Golden Section</big></font color=yellow></span hi></center>

5. ## Re: ABCDEF

<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow> Well done Hans, I was enjoying watching Who's Online yesterday just after I posted it and saw you were looking at the post for about 10 minutes expecting a reply any moment. What made it better was I saw (T)Ricky having a view as well for about the same time..... it was good to see the experts slowed down (a little) on the Puzzle Board <img src=/S/evilgrin.gif border=0 alt=evilgrin width=15 height=15> </font color=yellow></span hi>

Jerry

6. ## Re: ABCDEF

Had to use google, but it turns up as a : <span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>Fibonacci number series</font color=yellow></span hi>

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