Improving style (and speed)?

[ingo]

Alex Martelli wrote:

>.....
>
>But that's dependent on there being a bug in your
>code as presented.  Is there...?
>
Yes :(

Thanks Alex, for showing how to approach someting like this, setting up
a simple table. But the step from the table to
>Posy=Posy+(MinIndex%3)-1
>Posz=Posz+(MinIndex/3)-1
would never occured to me.

Ingo

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