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64'er 1988 February
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64er_Magazin_88-02_1988_Markt__Technik_de_Side_A.d64
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x^5-julia-mengen
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Commodore BASIC
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2022-10-26
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558b
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17 lines
10 rem ****************************
20 rem * julia-mengen (x^5) *
30 rem * 1987 by stefan vilsmeier *
40 rem ****************************
110 :
240 xa=1:ya=0:xb=.309017:yb=.9510565:xc=-(xb+.5):yc=.5877825
245 xd=xc:yd=-yc:xe=xb:ye=-yb
410 : if (zz<8andint(zz/2)=zz/2)or(f=0andzz>=13)then sys 50182,xx,yy,1
552 za = za-5*((x-xd)*(x-xd)+(y-yd)*(y-yd)<=ep)
554 za = za-6*((x-xe)*(x-xe)+(y-ye)*(y-ye)<=ep)
580 n = n*n*n*n:xy = x
590 x = .8*xy+.2*(xq*xq-6*xq*yq+yq*yq)/n
595 y = .8*(y+(xy*y*yq-xy*y*xq)/n)
620 f = -(n<1e-5)
630 if f=0 then f=-(n>1e+5)
640 if f=0 then f=za