Quickie post with a screencap of Edward Montague's MsetRoots formula's parent fractal with Sebastien Helie's color map with contrasting adjacent colors -- to try and get an initial look at the fractal's structure: http://tinyurl.com/MsetRoots-parent-fractal-jpg or: http://www.emarketingiseasy.com/Sciwise/171210-MsetRoots-parent-fractal.jpg I couldn't help but explore a tiny bit... Zoom in the valley at right: http://www.emarketingiseasy.com/Sciwise/Sfract11.gif And the chaff at Sfract11.gif's lower right enlarged: http://www.emarketingiseasy.com/Sciwise/Sfract12.gif Richard's fractint lower-cases the formula name when it writes it out... Sorry, Edward. float=y is required. ---------- Start of Parameter set: -------------- MsetRootsParent { ; Edward Montague - sciwise ; Sebastien Helie's cmap ; -Hal Lane, combiner ; Fractint Version 2099 Patchlevel 8 reset=2099 type=formula formulafile=171210.par formulaname=r2mandel center-mag=-0.415764/-0.0262864/1.414397 float=y inside=0 colors=PC0cNzgzLjUQlYW00000P5LSAbWGkZLkbQbeWLi`0mP\ W0X`EddRlibrmlwqtyvyzzz770HE0QK0YQ0dW0ja0mh0nn0zzz\ nnnbbbTTTKKKDDD999WaaakdgsglxkqznuxqxstzkwzazaaacL\ Xd8Rf1Mh1Gi8BkL5ma0vvvdmmSddKYYKSSSNNdKKvJJm0mg0gb\ 0bY0YU0UR0RP0PP0PP0Pd0dr0ry0yy0yr0rd0dP0P0PP0dd0rr\ 0yy0yy0rr0dd0PPPP0dd0rr0yy0yy0rr0dd0PP0U0Ug0Zs0cy0\ gy0ls0qg0uU0z0UU0Za0cg0gn0ls0qw0uy0zz_mIkoPtqVzsaz\ tgtvmkxt_zzOm3Xs4dw4lz4rz5vw5ys6zm6Ok7<2>4Y81T80P9\ 999<114>wwwxxxxxx<3>zzzUG5z0A } frm:r2mandel(XAXIS) [periodicity=0] {;sciwiseg , Edward Montague ; ; Roots of Mset via derivative of Mset . ; ; y , derivative ; z , Mset . ; ; x = Pixel z=1 y = 1 : y= 2*x*y+1 z = x*x + Pixel x = x - (z/y) .0001 < |z| } ---- End of parameter set --------------- - Hal Lane ######################## # hallane@earthlink.net ######################## --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus