File:Trefoil-triquetra-rhodonea-rose-limacon.png: Difference between revisions
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(Trefoil knot generated from the polar coordinates equation r=b+sin(aθ), which is a slight generalization of the Limaçon and Rose/rhodonea curves, using parameters a=(3/5) and b=(8/5). For a similar looking visual rendering of the 3_1 knot, but made) |
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Trefoil knot generated from the polar coordinates equation r=b+sin(aθ), which is a slight generalization of the Limaçon and Rose/rhodonea curves, using parameters a=(3/5) and b=(8/5). For a similar looking visual rendering of the [[3_1]] knot, but made from three 300° circular arcs, see image [[ |
Trefoil knot generated from the polar coordinates equation r=b+sin(aθ), which is a slight generalization of the Limaçon and Rose/rhodonea curves, using parameters a=(3/5) and b=(8/5). For a similar looking visual rendering of the [[3_1]] knot, but made from three 300° circular arcs, see image [[:Image:Trefoil-Triquetra.png]]. |
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Self-made graphic, declared to be public domain, converted from the following PostScript source code: |
Self-made graphic, declared to be public domain, converted from the following PostScript source code: |
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Revision as of 23:59, 19 February 2010
Trefoil knot generated from the polar coordinates equation r=b+sin(aθ), which is a slight generalization of the Limaçon and Rose/rhodonea curves, using parameters a=(3/5) and b=(8/5). For a similar looking visual rendering of the 3_1 knot, but made from three 300° circular arcs, see image Image:Trefoil-Triquetra.png.
Self-made graphic, declared to be public domain, converted from the following PostScript source code:
%!
300 396 translate 75 dup scale 30 rotate .125 setlinewidth 1
setgray/z{{w lineto}for stroke}def/ecc{1.6}def/w{/th exch def
th 3 mul 2 div/x exch def x sin ecc add th cos mul x sin ecc
add th sin mul}def/y{dup w moveto 1 add 1}def 0 y 720{w
lineto}for closepath gsave 0 setgray .325 setlinewidth stroke
grestore stroke 0 setgray .325 setlinewidth -4 y 4 z 236 y
244 z 476 y 484 z .125 setlinewidth 1 setgray -5 y 5 z 235 y
245 z 475 y 485 z showpage
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:58, 19 February 2010 |  | 635 × 600 (15 KB) | AnonMoos (talk | contribs) | Trefoil knot generated from the polar coordinates equation r=b+sin(aθ), which is a slight generalization of the Limaçon and Rose/rhodonea curves, using parameters a=(3/5) and b=(8/5). For a similar looking visual rendering of the 3_1 knot, but made |
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