This is a 16 colour B&W, but it won't work in a 16 colour mode, because the map is more complicated. Like I said elsewhere, this is part of a project, so jenerating an inaccurate fractal was not my intention. My little formal training in computing told mee that sometimes accuracy involves iterations on the function that is in the CPU. The Sine is a case in point. I rekt an assignment over a decade ago, because I discovered that IBM 370s hav not two, but three levels of precision: single, double, and extended. In fact, the textbook, in equating double with extended, was more confused than I was. On a tanjent, you may hav noticed that I _don't_ spel. For me, spelling reform is no where near the political topic it was for Webster. And in case your interested, Mark Twain, Benjamin Franklin, and G. Bernard Shaw were all spelling reformers and vejetarians. Shaw commissioned a set of glyphs to encouraje phonetic spelling. Franklin re-ordered the alphabet to highlight the most similar sounds, and Twain tried to sell the public on a font. I'v bn tld tht my own font resembles Cree. And I gather that this is _phonetic_ Cree (It has some very strong hints for the deaf who wish to speak, especially if the _map_ is as good as mine). Speaking of the essential map that lets humdrum fractals look decent... Some skipping (erroneous inclusions to the inside set) are in this that tesseral makes good work of, yet passes=1 doesn't help, nor does arbitrary precision. [Maybe symmetry should go in the parameter file, instead of dhu formula, along with BFDIGITS, because a lot of formulas _can_ hav symmetries.]. I figure that as long as old versions know well enough to ignore parameters dhat dhey don't understand, dhen dhe backward compatibility issues hav been addressed, here, bt furdher along the path you'll remember the mess that is Ingglish speling is nicely summed in a name for the letter Guu that also fits a very neat pattern for names of the letters that are like "Alpha, Tango, Zuuluu" in one syllable. I orijinally hit upon something much more elaborate for Clubs with the same formula, but I couldn't make it work in black and white. Well...maybe I could, but I doubt that it will make the production. (That's funny...sometimes my Telco skips what I should be skipping in my speling). Now, by "same formula", I'm not referring to what I might write in V19.6, which had a neg function. It didn't work in the formulas, because you were supposed to use the minus sign for everything but parameters. A backward compatibility issue _is_ when you fail to support old parameter files, to say nothing of the fact that this formula may seem unworkable with the minus sign as a constant. _______ Animal, Vejtable, Mineral, Tool: Six 9-up, double-sided pages of glossy card paper for twenty questions -- $18 for the first copy -- less than $2/each for lithography. Some people aren't sure whether computers are more like animals or minerals. Any comp-Sci would likely put them in the vejtabl category, but the only clear category for them and the programs they run is tool.