I suspect you are right on that. I'm thinking it was a Snarlygribbly thing ... or bagginsbill. He had some great things in his matmatic python script. You might want to check out bb's site The link takes you straight to the matmatic page.

P.S. thank you so much on your comment on my fur-babies. All our fur-babies soften our lives when life becomes too rough.

Boni

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"Be Hero to Yourself" -- Peter Tork