Slika:Overhand-folded-ribbon-pentagon.svg
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If a flat ribbon or strip is tightly folded into a simple overhand knot of practical knot-tying, it assumes a regular pentagonal shape. Here a ribbon which is green on one side and blue on the other is shown folded in this way. Non-overlapped hidden edges are shown by dotted lines of the appropriate color (except that the middle of one line has been removed where it would confusingly intersect the other hidden-edge lines if shown). If the two loose ends are joined, this becomes a trefoil knot of mathematical knot theory. |
| Datum | |
| Vir |
Self-made image, generated from the following PostScript vector source code: %!
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0 I 0 J lineto 1 I 1 J lineto
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2 I 2 J lineto closepath
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3 I 3 J moveto 1 I 1 J lineto
0 I 0 J lineto 4 I 4 J lineto
3.25 X cos 111.8 mul 3.25 X sin 111.8 mul rlineto
2 X cos 111.8 mul 2 X sin 111.8 mul rlineto
closepath gsave .92 .96 1 setrgbcolor fill grestore
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0 I 0 J lineto 2 I 2 J lineto 3 I 3 J lineto
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stroke [5.2] 5.2 setdash
3 I 3 J moveto 1 I 1 J lineto stroke
.2 .65 .3 setrgbcolor [5.14] 5.14 setdash
2 I 2 J moveto 1 I 1 J lineto stroke
3 I 3 J moveto 0 I 0 J lineto stroke 2 I 2 J moveto
4.25 X cos 45 mul 4.25 X sin 45 mul rlineto stroke
4 I 4 J moveto
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showpage
%EOF |
| Avtor | AnonMoos |
| Dovoljenje (Nadaljnja uporaba datoteke) |
 W3C-validity not checked. |
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Jaz, imetnik avtorskih pravic na tem delu, izročam to delo v javno domeno. To velja po vsem svetu. V nekaterih državah to pravno morda ni mogoče. Če je tako, Vsakomur dajem (v okviru zakonskih omejitev) brezpogojno pravico, da gradivo uporablja v kateri koli namen. |
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| Datum in čas | Sličica | Velikost | Uporabnik | Komentar | |
|---|---|---|---|---|---|
| trenutno | 08:31, 9. december 2012 | | 800 × 495 (1 KB) | AnonMoos | eliminate minor annoying kink at top, slight margin readjustment |
| 15:16, 1. julij 2010 |  | 800 × 498 (2 KB) | AnonMoos | adding partial line | |
| 23:59, 29. junij 2010 |  | 800 × 498 (1 KB) | AnonMoos | If a flat ribbon or strip is tightly folded into a simple overhand knot of practical knot-tying, it assumes a regular pentagonal shape. Here a ribbon which is green on one side and blue on the other is shown folded in this way. Non-overlapped hidden edge |
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