Another Kerry Mitchell formula fractal. Gif and jpg at the usual http://maxitersfractalfollies.blogspot.com Steel Blue Curves { ; fract283.gif ; blank ; calctime 0:14:50.83 ; created Jun 30, 2010 ; Fractint Version 2004 Patchlevel 9 reset=2004 type=formula formulafile=kerrym.frm formulaname=km_12 center-mag=0.639399/0.290604/1.173709/1/15.0000000000000018/-3.778227730\ 67748585e-014 params=-1.596484267708365/-0.3024384289071322/1.072847682119205/0.015808\ 58790856655/-0.5392010254219184/-0.1369060335093234/-0.2313303018280587/\ 0.7412945951719717 float=y maxiter=1500 inside=0 invert=0.644093142490921/-0.0506912442396313/-0.962157048249763 decomp=256 periodicity=0 colors=ELLFLLFMMGMMGNNHNNHOOIOOIPPJPPJPPKQQKQQLRRLRRMSSMSSNTTNTTOTTOUUPU\ UPVVQVVQWWRWWRXXSXXSXXTYYTYYUZZUZZV__V__W``W``W``XaaXaaYaaYaaYbbYbbZbbZb\ b_cc_cc`dd`ddaddaeebeebffcffcffdggdggehhehhfiifiigiigjjhjjhkkikkikkjlljl\ lkmmkmmlnnlnnmnnmoonoonppoppopppqqpqqqrrqrrrrrrssssssttttttuuuuuuuuvvvvv\ vwwwwwwwwwxxxxxxyyyyyyyyyxxxxxxwwwwwwvvvvvvuvvuuutuutttsttsttrssrssqrrqr\ rprrpqqoqqoppnppnoomoomoolnnlnnlmmkmmkmmjlljllikkikkhkkhjjgjjgiifiifiieh\ hehhdggdggcggcffbffbeeaeeaeeadd`dd`cc_cc_ccZbbZbbYaaYaaXaaX``W``W__V__VZ\ ZUZZUZZTYYTYYSXXSXXRXXRWWQWWQVVQVVPVVPUUOUUOTTNTTNTTMSSMSSLRRLRRKRRKQQJQ\ QJPPIPPIPPHOOHOOGNNGNNFNNFMMFMMELLELLDLLDKKCKKCJJBJJBIIAIIAII9HH9HH8GG8G\ G7GG7FF6FF6EE5EE5EE4DD4DD3CC3CC3CC2BB1BB1AA0AA0AA1BB1BB2CC2CC3DD3DD4DD4E\ E5EE5FF6FF6FF7GG7GG8HH8HH9HH9IIAIIAJJBJJBJJCKKCKKDLLDLL } frm:km_12 { ; Kerry Mitchell 11may98 ;originally conic-near_jul2 ;tweaked so user can directly input ; julia parameters (cc=p4) originally ; hardcoded to -2 cc=p4, zc=pixel, maxr=1e12, minr=maxr, iter=1 a=real(p1), b=imag(p1), c=real(p2), d=imag(p2) e=real(p3), f=imag(p3): iter=iter+1, zc=sqr(zc)+cc, x=real(zc), y=imag(zc) conic=|x*(a*x+b)+y*(c*y+d)+e*x*y+f| if (conic<minr) minr=conic end if if ((|zc|>maxr)||(iter==maxit)) iter=-1 t=log(minr) z=cos(t)+flip(sin(t)) end if iter>0 } Roger Alexander