Mandel sturcture building back i also start to have the feeling of it. Pretty double mandel_brot<br><br><br>start parameter file===================================<br>double_mandel { ; comming_back<br>  reset=2004 type=formula formulafile=2012_4.frm formulaname=zsweet<br>
  function=sqr corners=-0.63632/0.63632/-0.47724/0.47724<br>  params=-20/0/10/0 float=y inside=0 potential=120/200/4<br>  colors=000005&lt;8&gt;007008008&lt;3&gt;00A&lt;3&gt;GGOLLRPPVTTYXXa&lt;8&gt;EEMBBK99I&lt;2&gt;33C00A02\<br>
  D&lt;7&gt;0Id0Kh0Mk&lt;3&gt;0Vz0GzVVz&lt;3&gt;zVz&lt;3&gt;zVV&lt;3&gt;kNNgLLcJJ&lt;2&gt;TDD&lt;8&gt;F66D55C44&lt;3&gt;50\<br>  0&lt;8&gt;ZO2aR3dU3&lt;3&gt;rd5&lt;6&gt;Q`NL`QH_S&lt;3&gt;0Xb&lt;2&gt;0ee&lt;8&gt;GQUIOTKMR&lt;2&gt;QGNSELSEHSEE&lt;3\<br>
  &gt;SSE&lt;3&gt;ESE&lt;3&gt;ESS&lt;2&gt;EHSKKS&lt;2&gt;QKSSKSSKQSKOSKMSKK&lt;2&gt;SQKSSKQSKOSKMSKKSK&lt;2&gt;KS\<br>  QKSSKQSKOSKMS00G&lt;3&gt;G0G&lt;3&gt;G00&lt;3&gt;GG0&lt;3&gt;0G0&lt;3&gt;0GG&lt;2&gt;04G88G&lt;2&gt;E8GG8GG8EG8CG8\<br>
  AG88&lt;2&gt;GE8GG8EG8CG8AG88G8&lt;2&gt;8GE8GG8EG8CG8AGBBG&lt;2&gt;FBGGBGGBFGBDGBCGBB&lt;2&gt;GF\<br>  BGGBFGBDGBCGBBGB&lt;2&gt;BGFBGGBFGBDGBCG000&lt;6&gt;000<br>  }<br><br><br>frm:zsweet{;sinpix<br>a=real(p1)+imag(p1)<br>
b=real(p2)+imag(p2)<br>z=c=fn1(pixel):<br>q=z^a/2+(z^a-1/2)<br>r=sin(z)<br>s=1/z^a*0.707106*z<br>z=s*q/r+b*c<br>|z|&lt;10<br>}<br clear="all">end parameter file=========================<br>-- <br>most attached file or result are positively balance at<br>
:<a href="https://sites.google.com/site/sinpix12823fractal/" target="_blank">https://sites.google.com/site/sinpix12823fractal/</a> <br><br><br><br><br>