Hi, good news. I found what caused that mysterious fractint-bug. It must be one as I have used the same bailout expression on some other formulas without problem. Lee, here is your bug-image running perfectly. I tested some pictures and I could not detect any difference to this version, so I have not renamed it. Suggest you just exchange it. I have a new zooming playing ground (siamese twins) and two zooms. Check it out. Fractal greetings, Al. ---------------------------start-par-------------------------------------- Alien_landscape { ; Time 0.35.37 ; Albrecht Niekamp May, 03 ; Version 2002 Patchlevel 5 reset=2002 type=formula formulafile=mult239.frm formulaname=multifractal ismand=y function=exp/sin/exp passes=t center-mag=-1.35882/-0.813178/13.33333/1/60.0000000000000711/-3.77822773\ 067748585e-014 params=-0.1740997192297128/-0.2996141087069308/384.00004/256.1106/4096.0\ 0016/768.00009/768.01536/128.01025/28984.5/0 float=y maxiter=2048 inside=maxiter outside=tdis logmap=10 periodicity=0 rseed=-2436 colors=00006D<3>0BL0DN0DP<2>0IV0JX0KZ0L`0Mb<3>0Rj0Sl0Tn0Up4Yr8atCgvGkxKq\ z<3>4_s0Vq0Uo<6>0Ma0L_0KY<3>0FQ0DO0DM<3>08E06C06A048046024012000100<12>R\ 0LT0NV0PX0P<3>d0Wf0Yh0Z<3>p0e<3>xOtzUxyOuwIquCns6iq0g<2>k0bi0`g0_e0Z<3>Y\ 0SW0RU0O<8>C0AA09807506304102010<11>0P30R30T40V40X3<3>0d40f50h5<3>0p6<3>\ WxZczeUyY<2>0s8<4>0i60g60e60c4<2>0Y40W30U4<5>0I20G20E20C20A1081<3>000010\ 1221532653863A84DA5EB5HB<2>7NG8PI8RJ9TKAVNAXM<3>DdTDfVEhWFjYFlYGn_Gp`Prd\ <3>zzz<2>_ulRsgHqaHo`GmZFkXFiX<5>BYOAWMAUL9SK<4>6IC5GB5DA<3>254243121000\ 00102302504704905B } Siamese_twins { ; Time 0.49.07 ; Albrecht Niekamp May, 03 ; Version 2002 Patchlevel 5 reset=2002 type=formula formulafile=mult239.frm formulaname=multifractal ismand=y function=exp/sin/exp passes=t center-mag=-0.500782/0/0.6666667 params=-0.1740997192297128/-0.2996141087069308/384.00004/256.1106/4096.0\ 0016/768.00009/768.01536/128.01025/28984.5/0 float=y maxiter=2048 inside=maxiter outside=tdis logmap=10 periodicity=0 rseed=-2436 colors=0003A84DA5EB5HB<2>7NG8PI8RJ9TKAVNAXM<3>DdTDfVEhWFjYFlYGn_Gp`Prd<3\

zzz<2>_ulRsgHqaHo`GmZFkXFiX<5>BYOAWMAUL9SK<4>6IC5GB5DA<3>25424312100000\ 1023025047049<5>0BL0DN0DP<2>0IV0JX0KZ0L`0Mb<3>0Rj0Sl0Tn0Up4Yr8atCgvGkxKq\ z<3>4_s0Vq0Uo<6>0Ma0L_0KY<3>0FQ0DO0DM<3>08E06C06A048046024012000100<12>R\ 0LT0NV0PX0P<3>d0Wf0Yh0Z<3>p0e<3>xOtzUxyOuwIquCns6iq0g<2>k0bi0`g0_e0Z<3>Y\ 0SW0RU0O<8>C0AA09807506304102010<11>0P30R30T40V40X3<3>0d40f50h5<3>0p6<3>\ WxZczeUyY<2>0s8<4>0i60g60e60c4<2>0Y40W30U4<5>0I20G20E20C20A1081<3>000010\ 122153265386 }

Bug_Test { ; Time 0.08.03 ; Image Lee Skinner ; Version 2002 Patchlevel 5 reset=2002 type=formula formulafile=mult239.frm formulaname=multifractal ismand=n function=exp/exp/exp passes=t center-mag=-6.52603785028786300/-0.01400828975779934/419.4063/1/77.50000\ 00000024869/-5.11394399049791559e-012 params=-0.1740997192297128/-0.2996141087069308/384.00004/256.1106/2048.0\ 0016/768.00009/768.01536/256.01025/28974.5/12 float=y maxiter=2048 inside=maxiter outside=tdis logmap=yes symmetry=none periodicity=0 rseed=-2436 cyclerange=2/255 colors=000000zz1zzC<2>zzz<3>jqdfo_blU<3>Mb8<3>LQ8KM8KJ8<2>I88H44G00<3>TA\ 5WD6ZF7aI8eLAhMBiODjQF<3>qeBriAtm9vq8xu7zz5zz4zz3<4>zj4zg4zc4<3>zS5zP5zL\ 6zI6zE6wE6tD6<6>vAIv9Kv9M<3>x7Sy7Uy6Wz6Yz5_<3>f5Ma5IW4E<2>_4H<3>P3DN2CK2\ A<3>805G0BO0G<3>g0Ul0Xq0`v0d<2>y0fz0gy0h<3>u1mt1ns1or2q<2>v2u<3>c5eZ6`U6\ X<2>F9LAAG7FO4KW0Qc<3>5Xc6Zc7`c7aa7c_7eY<3>FcgHciJbl<3>S_v<3>civflvinvlq\ votvsww<2>zzz<3>rwzovzhsw<3>Gch8_d8Xa<3>8JP8FL8CI<4>XCAaB9fB7<3>zA0<13>S\ A1QA1NA1<3>D92<6>UXAW`BYcC<3>hrI<3>UnXRm_NlcJkgFfpAaz<3>PJoSFlWAi_5fc0ce\ 7_jFRoNIzb0zj0zr0 } Rainforrest { ; Time 0.14.27 ; Albrecht Niekamp May,03 ; Version 2002 Patchlevel 5 reset=2002 type=formula formulafile=mult239.frm formulaname=multifractal ismand=y function=exp/sin/exp passes=t center-mag=-1.40318296737838300/-0.78552661781075610/5333.334/1/60.00000\ 00000113332/-5.22844267880628877e-012 params=-0.1740997192297128/-0.2996141087069308/384.00004/256.1106/4096.0\ 0016/768.00009/768.01536/128.01025/28984.5/0 float=y maxiter=2048 inside=maxiter outside=tdis logmap=10 periodicity=0 rseed=-2436 colors=00006D<3>0BL0DN0DP<2>0IV0JX0KZ0L`0Mb<3>0Rj0Sl0Tn0Up4Yr8atCgvGkxKq\ z<3>4_s0Vq0Uo<6>0Ma0L_0KY<3>0FQ0DO0DM<3>08E06C06A048046024012000100<12>R\ 0LT0NV0PX0P<3>d0Wf0Yh0Z<3>p0e<3>xOtzUxyOuwIquCns6iq0g<2>k0bi0`g0_e0Z<3>Y\ 0SW0RU0O<8>C0AA09807506304102010<11>0P30R30T40V40X3<3>0d40f50h5<3>0p6<3>\ WxZczeUyY<2>0s8<4>0i60g60e60c4<2>0Y40W30U4<5>0I20G20E20C20A1081<3>000010\ 1221532653863A84DA5EB5HB<2>7NG8PI8RJ9TKAVNAXM<3>DdTDfVEhWFjYFlYGn_Gp`Prd\ <3>zzz<2>_ulRsgHqaHo`GmZFkXFiX<5>BYOAWMAUL9SK<4>6IC5GB5DA<3>254243121000\ 00102302504704905B } --------------------------start-frm---------------------------------------- FRM:Multifractal { Albrecht Niekamp May, 03 ;only integers as first input, second input 5 digits to the right ;real(p2) factor1,border1 ;imag(p2) (-)maxiter1,input bas.frm1_2digits input bas.frm2_2digits ;real(p3) bailout,hyb.mandel: number of sides (Many_mods L.Allison) ;imag(p3) factor2,border2 ;real(p4) maxiter2,factor3 ;imag(p4) border3,maxiter3 ;real(p5) 1digit_shape only 5digits: shape,out1,out2,in1,in2 ; 1_mand 2_jul 3_hyb.mand 4_hyb.jul +5_reset (not shape) <0_no in/out1 ; optional basic frm2: out-nbr 1digit in-nbr 1digit 3_both +5_shape ;imag(p5) 1digit : 1_iter1reset 2_iter2reset 3_both +5_shape effect ; 2digits : many_mods multipl.shutoff +10_in/out1 +20_in/out2 +30_both ; optional input2: frequency_2digits level_2digits amplitude_2digits ; d=real(p2) fac1=trunc(d) b1=(d-fac1)*100000 ; d=imag(p2) da=d<0 if (da) d=-d endif mi1=trunc(d) d=round((d-mi1)*10000) p6=trunc(d/100)/10 d=d-1000*p6 if (da) p6=-p6 endif p7=d/10 ; d=real(p3) ba=trunc(d) mm=round((d-ba)*100000) ; d=imag(p3) fac2=trunc(d) b2=round((d-fac2)*100000) ; d=real(p4) mi2=trunc(d) fac3=round((d-mi2)*100000) ; d=imag(p4) b3=trunc(d) mi3=round((d-b3)*100000) ; da=real(p5) t=da<0 if (t) da=-da endif start=2-t dd=trunc(da) if (dd<5) start=0 endif vb=(dd==3)+(dd==4) da=round((da-dd)*100) d=trunc(dd/10000) vb=(d==3)+(d==4)+vb dd=dd-d*10000 d=trunc(dd/1000) or1=d>5 d=d-5*or1 vv1=(d==3) vv2=(d==4) dd1=(d==2)+(d==4) dd=dd-d*1000 d=trunc(dd/100) or2=d>5 d=d-5*or2 vv3=(d==3) vv4=(d==4) dd2=(d==2)+(d==4) dd=dd-d*100 d=trunc(dd/10) inr1=d>5 d=d-5*inr1 v1=(d==3) v2=(d==4) d1=(d==2)+(d==4) dd=dd-10*d d=trunc(dd) inr2=d>5 d=d-5*inr2 v3=(d==3) v4=(d==4) d2=(d==2)+(d==4) d=trunc(da/10) ab=d>=5 d=d-5*ab da=da-10*d bb1=(d==1) bb2=(d==2) d=da ab=d>=5 d=d-5*ab ab1=(d==1) ab2=(d==2) ; d=imag(p5) dd=trunc(d) d=round((d-dd)*1000000) le=d>10000 da=trunc(dd/10) so1=((da==1)+(da==3)==0) so2=((da==2)+(da==3)==0) dd=dd-10*da wo=dd>=5 dd=dd-5*wo ir1=(dd==1)+(dd==3) ir2=(dd==2)+(dd==3) if (le) freq=round((trunc(d/10000))*10) ;frequency_lake effect by S.Gallet d=d-freq*1000 level=(trunc(d/100))/100 ;water level d=d-level*10000 ampl=d/100 ;amplitude of the wave u=real(rotskew*pi/180) t=exp(-flip(u)) h=1/real(magxmag) q=h/0.75*imag(magxmag) dd=tan(imag(rotskew*pi/180)) w=2*q*t v=2*h*(dd+flip(1))*t z2=center+(-q-h*dd-flip(h))*t z=pixel-z2 d=imag(conj(w)*z)/imag(conj(w)*v) if (d<=level) da=level-d z=z+2*da*(1+ampl*sin(freq*da^0.2))*v endif z=z+z2 endif if (ismand) if (vb) c=0.4*log(sqr(pixel^mm)) z=z*le else c=z*le+pixel*(le==0) z=0 endif else c=p1 z=z*le+pixel*(le==0) endif t=0 d3=(ismand==0) u=d3 : if (vb) if (d3) z=(z*z-real(c))^(z*u+imag(c)) else z2=fn1(z)+c ;Linda Allison sqz2=cos(z2) z=c*(1-sqz2)/(1+sqz2) endif elseif (ab) z=z*z+c+c*c-p7 ;Pusk s Istv n elseif (d3) z2=z*z z=z2*z2+(p6+u)*z2+c else z2=z*z ;Pusk s Istv n z=z2*z2+(p6+u)*z2+c-p1 endif bo=|z| If (wo) t=t+1 if ((t<mi1)+(bo>b1)) u=2*(fn1(t/fac1)) if (ismand) z=z*u if (vb) c=0.4*log(sqr(pixel^mm)) else c=z*le+pixel*(le==0) endif else z=z*le+pixel*(le==0) c=p1*u endif wo=0 if (ir1) t=0 endif endif elseif (start) t=t+1 if (start==2) if (bo>b2) u=2*(fn2(t/fac2)) rs=or1 ab=bb1 if (dd1) if (rs) z=pixel endif c=p1*u vb=vv2 d3=vb else d3=0 z=z*u c=z if (rs) z=0 endif vb=vv1 if (vb) if (so1) mm=mm+mm endif c=0.4*log(sqr(pixel^mm)) endif start=1 endif elseif (t>mi2) u=2*(fn2(t/fac2)) rs=inr1 ab=ab1 if (d1) if (rs) z=pixel endif c=p1*u vb=v2 d3=vb else d3=0 z=z*u c=z if (rs) z=0 endif vb=v1 if (vb) if (so1) mm=mm+mm endif c=0.4*log(sqr(pixel^mm)) endif endif start=1 if (ir2) t=0 endif endif elseif (bo>b3) u=2*(fn3(t/fac3)) ab=bb2 rs=or2 if (dd2) if (rs) z=pixel endif c=p1*u vb=vv4 d3=vb else d3=0 z=z*u c=z if (rs) z=0 endif vb=vv3 if (vb) if (so2) mm=mm+mm endif c=0.4*log(sqr(pixel^mm)) endif start=0 endif elseif (t>mi3) u=2*(fn3(t/fac3)) ab=ab2 rs=inr2 if (d2) if (rs) z=pixel endif c=p1*u vb=v4 d3=vb else d3=0 z=z*u c=z if (rs) z=0 endif vb=v3 if (vb) if (so2) mm=mm+mm endif c=0.4*log(sqr(pixel^mm)) endif endif start=0 endif endif |z|<=ba } -------------------------------------end----------------------