Today a spiral. Can you have too many spirals? That's like saying can you have too many paperclips. While it's necessary to have enough on hand to meet immediate needs, it's always reassuring to have plenty in reserve. As I write these words I realize I don't know where I'm going with this so I think I'll change the subject. Speaking of changing the subject for those who are pressed for time calculation delays can be avoided by a visit to http://maxitersfractalfollies.blogspot.com for the uploaded image. fract454.gif { ; metallic spiral ; blank ; calctime 0:05:21.34 ; created Oct 05, 2010 ; Fractint Version 2004 Patchlevel 9 reset=2004 type=formula formulafile=julhack.frm formulaname=julia_holes center-mag=-0.57572/-0.570952/13.33333 params=0.04867702261421552/0.7153233436078982/-0.008148442030091251/-0.9\ 530625324259163 float=y maxiter=1500 inside=0 proximity=2 outside=fmod colors=05F16G27H27H27H27H27H00000000000000000000000000049J5AK5AK5AK5AK5A\ K6BL0000000000007CM7CM7CM7CM8DN8DN8DN8DN8DN9EO9EO9EO9EO9EOAFPAFPAFPAFPAF\ PBGQBGQBGQBGQBGQCHRCHRCHRCHRCHRDISDISDISDISDISEISEJTFJTFKTGKUGLUHLVHMVIM\ VINWJNWJOWKOXKPXLPYLQYMQYMRZNRZNSZOS_OT_PT_PT`QU`QUaRVaRVaSWbSWbTXbTXcUY\ cUYcVZdVZdW_eW_eX`eX`fYafYafZbgZbg_ch_ch`ch`diadiaeibejbfjcfjcgkdgkdhleh\ leilfimfjmgjmgknhknhlniloimojmpjmpknpknqloqloqmprmprnqsnqsorsortpstpstqt\ uqturuuruvsvvsvwtwwtwwuxxuxxuxxvyyvyywzzvyyvyyuxxtxxtwwsvwsvvruvquuqtups\ tostorsnqsnqrmprlpqloqknpjnpjmoimohlnhkngkmgjmfjleilehkdhkcgjcfjbfibeiae\ h`dh`cg_cgZbfZbfYaeX`eX`dW_dW_cVZcUYbUYbTXaSWaSW`RV`RV_QU_PTZPTZOSYNSYNR\ XMQXLQWLPWKPVKOVJNUINUIMTHLTGLSGKSFKRFJREIQDIQDHPCHPBGOBFOAFN9EN9EM8DM8C\ L7CL6BK6AK5AJ49J49I38I37H27H16G16G05F05F05F16G16G16G16G } frm:julia_holes(XAXIS_NOIMAG) { ;default for p1=0.17, good for 2. exponent ;p2 is the exponent (default=2, try 1.7 to 4) ;try cont. pot. too, works ok with exponent=2! ;the crit. value for exponent=2 is ~0.1481483 p=p1,p=p+(|p|==0)*0.17 x=p2,x=x+(x==0)*2 z=pixel: z=z^x+p/z |z|<4 } Roger Alexander