Hello Janis,

On Friday September 04 2015 20:26, you wrote to mark lewis:

 >> the formula is so easy that one can whip it up in pascal, perl, a
 >> spreadsheet, BASIC, or most any other coding script language... if
 >> anyone is interested in it, they only need ask ;)

 JK> Yes, I've discussed this with (believe it or not) Michiel van der
 JK> Vlist and he commented on that type conversion as well...

We did? Hmmm. I suppose we could have. I vaguely remember having struggled with
the relation between net- and region numbers and having tried to catch it in a
formula to be coded. I don't recall what the project was that I needed it for.
It must have been over a decade ago... The formula you presented is easy enough
to code, but it does not cover reality. Not even in Z1. Too many exceptions.
What is net 300 doing in Region 14? And what about all those net numbers <200?
There shouldn't be any according to your formula.

I finally gave up trying to catch it in a formula. In the end I just made a
lookup table. That solved the problem. Whatever the problem was. I forgot.

 JK> little good it did Z2 obviously 

Z2 used a different formula. As do other zones. Most zones use the formula:

N = (10xR) to (10x(R+1)) plus (100xR) to (100x(R+1)

Z2 has done that "forever". With later exceptions.

I do not know where you got the idea that Dodell's Z1 formula is based on any
interzonal agreement that was binding to all zones.  It obviously isn't.


Cheers, Michiel

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