Hello

I have been using POV on and off since the early 90s.  It was a fabulous product
then, and it is fabulous now.

Small as it is, I would like to offer a contribution of my own: fixing
mandelx_pattern.  I have hacked together a demonstration of my proposed
improvement:

1.) Accuracy is not damaged.  In fact it is improved.  In a typical test case:

2.) Speed is improved.  The enclosed graph shows measured performance

2x to 20x]
3.) Maintainability  is improved.  The code is easier to read and, for instance,
the binomial_coeff stuff is no longer needed.

If you would be interested, drop me a note.

Algo

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