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diff --git a/Master/texmf-dist/doc/asymptote/examples/cyclohexane.asy b/Master/texmf-dist/doc/asymptote/examples/cyclohexane.asy
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+++ b/Master/texmf-dist/doc/asymptote/examples/cyclohexane.asy
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+import three;
+
+currentprojection=perspective(300,-650,500);
+currentlight.background=palecyan;
+
+surface carbon=scale3(70)*unitsphere; // 70 pm
+surface hydrogen=scale3(25)*unitsphere; // 25 pm
+
+real alpha=90+aSin(1/3);
+
+real CCbond=156; // 156 pm
+real CHbond=110; // 110 pm
+
+triple c1=(0,0,0);
+triple h1=c1+CHbond*Z;
+triple c2=rotate(alpha,c1,c1+Y)*(CCbond*Z);
+triple h2=rotate(120,c1,c2)*h1;
+triple h3=c2-CHbond*Z;
+triple h4=rotate(120,c2,c1)*h3;
+
+triple c3=rotate(120,c2,h3)*c1;
+triple h5=c3+CHbond*Z;
+triple h6=rotate(-120,c3,c2)*h5;
+
+triple c4=rotate(-120,c3,h5)*c2;
+triple h7=c4-CHbond*Z;
+triple h8=rotate(120,c4,c3)*h7;
+
+triple c5=rotate(120,c4,h7)*c3;
+triple h9=c5+CHbond*Z;
+triple h10=rotate(-120,c5,c4)*h9;
+
+triple c6=rotate(-120,c5,h9)*c4;
+triple h11=c6-CHbond*Z;
+triple h12=rotate(120,c6,c5)*h11;
+
+pen Black=gray(0.4);
+
+defaultrender=render(compression=Zero,merge=true);
+
+draw(shift(c1)*carbon,Black);
+draw(shift(c2)*carbon,Black);
+draw(shift(c3)*carbon,Black);
+draw(shift(c4)*carbon,Black);
+draw(shift(c5)*carbon,Black);
+draw(shift(c6)*carbon,Black);
+
+
+material White=material(diffusepen=gray(0.4),emissivepen=gray(0.6));
+
+draw(shift(h1)*hydrogen,White);
+draw(shift(h2)*hydrogen,White);
+draw(shift(h3)*hydrogen,White);
+draw(shift(h4)*hydrogen,White);
+draw(shift(h5)*hydrogen,White);
+draw(shift(h6)*hydrogen,White);
+draw(shift(h7)*hydrogen,White);
+draw(shift(h8)*hydrogen,White);
+draw(shift(h9)*hydrogen,White);
+draw(shift(h10)*hydrogen,White);
+draw(shift(h11)*hydrogen,White);
+draw(shift(h12)*hydrogen,White);
+
+
+pen thick=linewidth(10);
+
+draw(c1--c2--c3--c4--c5--c6--cycle,thick);
+
+draw(c1--h1,thick);
+draw(c1--h2,thick);
+draw(c2--h3,thick);
+draw(c2--h4,thick);
+draw(c3--h5,thick);
+draw(c3--h6,thick);
+draw(c4--h7,thick);
+draw(c4--h8,thick);
+draw(c5--h9,thick);
+draw(c5--h10,thick);
+draw(c6--h11,thick);
+draw(c6--h12,thick);