Today's post is another newton mandelbrot mash-up. Ready made at http://maxitersfractalfollies.blogspot.com fractt517.gif { ; another newton-mandelbrot mash-up ; blank ; calctime 0:09:56.44 ; created Nov 15, 2010 ; Fractint Version 2004 Patchlevel 10 reset=2004 type=formula formulafile=_m.frm formulaname=mandel-newton-2 passes=1 center-mag=-0.61577/4.44089e-016/0.7788162 params=12/0 float=y maxiter=1500 inside=0 periodicity=0 colors=00000000100300400600800900B00C00E00G00H00J00K00M00O00P00R00T00U00\ W00X00Z00`00a00c00d00f00h00i00k00m01m03m04n06n07o09o0Ao0Cp0Ep0Fq0Hq0Iq0K\ r0Lr0Ns0Ps0Qs0St0Tt0Vu0Wu0Yu0Zv0`v0bw0cw0ew0fx0hx0iy0ky0mz1mz3mz5nz7nz9o\ zBozDozFpzHpzJqzLqzNqzPrzRrzTszVszXszZtz`tzbuzduzfuzhvzjvzlwznwzpwzrxztx\ zvyzxyzzzzyzzxzzwzzuzztzzszzqzzpzzozzmzzlzzkzzizzhzzgzzezzdzzczzbzz`zz_z\ zZzzXzzWzzVzzTzzSzzRzzPzzOzzNzzLzzKzzJzzIzzGzzFzzEzzCzzBzzAzz8zz7zz6zz4z\ z3zz2zz0zz0yz0xz0wz0uz0tz0sz0qz0pz0oz0mz0lz0kz0iz0hz0gz0ez0dz0cz0bz0`z0_\ z0Zz0Xz0Wz0Vz0Tz0Sz0Rz0Pz0Oz0Nz0Lz0Kz0Jz0Iz0Gz0Fz0Ez0Cz0Bz0Az08z07z06z04\ z03z02z00z00y00x00w00v00u00t00s00r00q00p00o00n00m00l00k00j00i00h00g00f00\ e00d00c00b00a00`00_00Z00Y00X00W00V00U00T00S00R00Q00P00O00N00M00L00K00J00\ I00H00G00F00E00D00C00B00A009008007006005004003002000000 } frm:mandel-newton-2 {; Sylvie Gallet [101324,3444], 1995-1996 ; Formula designed for Fractint 19.2 and modified for Fractint 19.3 limit = real(p1), test0 = 1, test3=0, iter = 1 z = pixel, c = z, b1 = 16 rad = 6, pix = (10*pixel+(8.0,-5))*(-0.1,-0.95) center = (1.0,0.1), zn = center+rad/(pix-center), b2 = 0.0001 : test0 = 1-test0, test1 = (iter<limit), test2=(iter!=limit) z = (z-zn)*test2 + zn z2 = z*z, z4 = z2*z2, z1 = (z4*z-1)/(4*z4 + (z==0)) z = (z2+c)*test1 + (z-z1)*(1-test1) test3 = (test3 || (|z|>b1)) z = z*(1-(test3 && test0 && test1)) iter = iter+1 ((|z|<=b1)*test1) || ((|z1|>=b2)*(1-test1)) ;SOURCE: gallet-n.frm } Roger Alexander