File:Trefoil-square.png
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Trefoil-square.png (576 × 576 pixels, file size: 336 bytes, MIME type: image/png)
Square depiction of 3_1 knot. For a similar but more complex visual representation of a knot, see Image:10crossings square.png.
Self-made, declared to be in public domain, generated from the following PostScript source code:
%!
1 setgray 36 setlinewidth/X{.5 add 144 mul exch .5 add 144 mul
exch}def/l{X lineto}def 0 3 X moveto 0 1 l 3 1 l 3 2 l 1 2 l
1 0 l 2 0 l 2 3 l closepath gsave 0 setgray 72 setlinewidth
stroke grestore stroke/r{144 mul exch 144 mul exch rlineto}def
72 setlinewidth 0 setgray 1.5 1 X moveto 1 0 r stroke
2 1.5 X moveto 0 1 r stroke 1 .5 X moveto 0 1 r stroke
1 setgray 36 setlinewidth 1.48 1 X moveto 1.04 0 r stroke
2 1.48 X moveto 0 1.04 r stroke 1 .48 X moveto 0 1.04 r stroke
showpage
%EOF
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:25, 3 February 2010 | | 576 × 576 (336 bytes) | AnonMoos (talk | contribs) | Square depiction of 3_1 knot. For a similar but more complex visual representation of a knot, see Image:10crossings square.png. Self-made, declared to be in public domain, generated from the following PostScript source code: <pre>%! 1 setgray |
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