Well, haven't heard from anyone not to do this...so here goes.  The name (subject) was selected because there will be at irregular intervals par snips as I get motivated. 

    No formula on this one.....it is embedded in the basic fractint program, tetrate, I believe.

    This is the first one in my archives.  It is really >old<, but has been reworked, both in resolution and color. 

    Thanks for your interest.

David M Fisher  sunfish@intercom.net