If anyone wants to explore this fractal I would suggest using this PAR file instead of the Shortarm Castle one because this one has a color map that works at any zoom. I also made the starting zoom show the search area with all the good stuff. I usually just search along the x axis to save time (there are also some minibrots between the spirals off axis too). The left side has cubic minibrots at the center of the 3 way symmetry features. The right side has some quadratic minibrots and both sides have places that zoom to infinity. Curiously, this fractal is an exception to the pattern I have seen in the past where all the minibrots are the same order. This fractal has the expected cubic minibrots that go with the z^3 terms in the formula and unusual quadratic minibrots that I didn't expect. Here is a link to an image: http://dl.dropboxusercontent.com/u/33642054/image/pr_3cossin-3cossin_AS_640_... The FractInt compatible PAR file for the image is: pr_3cs-3cs_AS { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20160222_0854 passes=1 float=y center-mag=-0.2449348958171875/0/2.237762266986161\ /1/0/0 params=1/1/0/0/-1/0/1/0/0/0 maxiter=2000 inside=0 periodicity=6 colors=000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O\ 40C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40\ C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C1\ 0000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C100\ 00C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000\ C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C1\ 0O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O\ 40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40\ ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA\ 0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0h\ I0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0\ oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS\ 0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0u\ a0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0\ ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0ym\ 0zy0ym0ua0oS0hI0ZA0O40C10 } frm:F_20160222_0854 { ; Similar to the parallel resistance formula a=real(p1),b=real(p2),d=imag(p1),f=imag(p2), z=0,c1=pixel-p3,c2=pixel-p4: cs=z*cos(z)*sin(z), z=1/(1/(cs+c1)+1/(cs+c2)), |z|<100 } -- Mike Frazier www.fracton.org