Decorative knot with nine crossings, depicted with three-fold symmetry.  Topologically equivalent to <a href="//commons.wikimedia.org/wiki/File:Knot-9crossings-symmetrical.svg" title="File:Knot-9crossings-symmetrical.svg">File:Knot-9crossings-symmetrical.svg</a>, but this version is based on triangles (rather than circles), and so appears like a more complex version of a <a href="//commons.wikimedia.org/wiki/Valknut" title="Valknut">Valknut</a>.  For an alternative less open version, see <a href="//commons.wikimedia.org/wiki/File:9crossings-knot-symmetric-triangles-quasi-valknut.svg" title="File:9crossings-knot-symmetric-triangles-quasi-valknut.svg">File:9crossings-knot-symmetric-triangles-quasi-valknut.svg</a>.
AnonMoos
2010
<p>Self-made graphic, converted from a version of the following vector PostScript source code:
</p>
<pre>%!
306 396 translate 10.5 setlinewidth 1 setgray/s{gsave 28
setlinewidth 0 setgray stroke grestore stroke}def/x{75}def
/r{100 mul}def x cos r x sin r moveto 125 46875 sqrt neg
rlineto -415.470053838 0 rlineto 181.8533237 314.9791962
rlineto s x cos r x sin r moveto -153.446 -265.77627
rlineto s x 120 add cos r x 120 add sin r moveto 306.892 0
rlineto s x 120 add cos r x 120 add sin r moveto 125 46875
sqrt rlineto 207.73502692 -359.807621135 rlineto
-363.706647396 0 rlineto s x 240 add cos r x 240 add sin r
moveto -250 0 rlineto 207.73502692 359.807621135 rlineto
181.8533237 -314.9791962 rlineto s x 240 add cos r x 240
add sin r moveto -153.446 265.77627 rlineto s showpage
%EOF</pre>