File:Penrose Valknut.svg

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Original file(SVG file, nominally 700 × 609 pixels, file size: 1,020 bytes)

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Description Penrose Valknut (impossible figure). Each of the three large triangles, as well as the small central triangle formed by the intersection of the three, is a Penrose triangle...
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Self-made, converted from a version of the following PostScript vector source code:

%!
300 396 translate 34 dup scale .125 setlinewidth 1 setlinejoin
/rd 3 sqrt 2 div def/SL{dup 0.5 mul exch rd mul rlineto}def
/BS{dup -0.5 mul exch rd mul rlineto}def/HZ{0 rlineto}def
/yc 1 rd div -0.5 mul def
/W{0 yc moveto 1 SL 1 HZ -3 SL -2 BS 5 SL 1 HZ -7 SL 3 BS -3 SL
8 BS 1 SL -7 BS 2 SL 3 BS 1 SL -3 BS 1 SL closepath
2 yc 2 rd mul add moveto 2 SL -1 HZ  -1 SL -1 BS closepath
-2.5 yc 3 rd mul add moveto 3 BS -1 SL -2 BS 1 HZ closepath}def
1 .7 .7 setrgbcolor W fill 0 setgray W stroke 120 rotate
.7 1 .7 setrgbcolor W fill 0 setgray W stroke 120 rotate
.7 .7 1 setrgbcolor W fill 0 setgray W stroke showpage
%EOF
Author AnonMoos
Permission
(Reusing this file)
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Other versions File:Penrose pentagram.svg

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Date/TimeThumbnailDimensionsUserComment
current13:26, 8 May 2019Thumbnail for version as of 13:26, 8 May 2019700 × 609 (1,020 bytes)AnonMoos (talk | contribs){{Information |Description=Penrose Valknut (impossible figure) |Source=Self-made, converted from a version of the following PostScript vector source code: <pre>%! 300 396 translate 34 dup scale .125 setlinewidth 1 setlinejoin /rd 3 sqrt 2 div def/SL{dup 0.5 mul exch rd mul rlineto}def /BS{dup -0.5 mul exch rd mul rlineto}def/HZ{0 rlineto}def /yc 1 rd div -0.5 mul def /W{0 yc moveto 1 SL 1 HZ -3 SL -2 BS 5 SL 1 HZ -7 SL 3 BS -3 SL 8 BS 1 SL -7 BS 2 SL 3 BS 1 SL -3 BS 1 SL closepath 2 yc 2 rd m...

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