Keywords: 9-23 knot-theory 2-symmetrical.png Depiction of http //katlas math toronto edu/wiki/9_23 9_23 knot of knot theory with 2-fold rotational symmetry Topologically equivalent to File 9crossing-knot symmetrical grid svg Previously uploaded as http //katlas math toronto edu/wiki/Image 9crossings-2symmetrical png NOTE This image was uploaded as a temproary stop-gap now replaced by File 9crossing-knot symmetrical grid svg Generated from the following vector PostScript source code <pre> 306 396 translate 1 setlinejoin/x 5000 sqrt def 12 5 setlinewidth 92 96 1 setrgbcolor/A gsave 29 95 setlinewidth 0 setgray stroke grestore stroke def -130 33008589 73 2233047 40 38059223 225 180 arcn x 100 add neg 150 lineto -109 61940777 109 61940777 40 38059223 90 315 arcn x neg -50 100 135 180 arc x 100 add neg -100 50 -90 -45 arc x 100 add 100 50 135 90 arcn x 50 100 0 -45 arcn 109 61940777 -109 61940777 40 38059223 135 270 arc x 100 add -150 lineto 130 33008589 -73 2233047 40 38059223 0 45 arc -52 51262658 109 61940777 40 38059223 45 225 arc 52 51262658 -109 61940777 40 38059223 45 225 arcn closepath A 0 setlinejoin 29 95 setlinewidth 0 setgray -11 -11 moveto 22 22 rlineto stroke -109 61940777 109 61940777 40 38059223 67 20 arcn stroke 109 61940777 -109 61940777 40 38059223 247 200 arcn stroke x neg -50 100 142 135 arcn 13 13 rlineto stroke x 50 100 322 315 arcn -13 -13 rlineto stroke -52 51262658 109 61940777 40 38059223 197 225 arc 9 -9 rlineto stroke 52 51262658 -109 61940777 40 38059223 17 45 arc -9 9 rlineto stroke -65 88347648 -48 33008589 moveto 18 -18 rlineto stroke 65 88347648 48 33008589 moveto -18 18 rlineto stroke 12 5 setlinewidth 92 96 1 setrgbcolor -12 -12 moveto 24 24 rlineto stroke -109 61940777 109 61940777 40 38059223 68 19 arcn stroke 109 61940777 -109 61940777 40 38059223 248 199 arcn stroke x neg -50 100 143 135 arcn 14 14 rlineto stroke x 50 100 323 315 arcn -14 -14 rlineto stroke -52 51262658 109 61940777 40 38059223 196 225 arc 10 -10 rlineto stroke 52 51262658 -109 61940777 40 38059223 16 45 arc -10 10 rlineto stroke -66 88347648 -47 33008589 moveto 20 -20 rlineto stroke 66 88347648 47 33008589 moveto -20 20 rlineto stroke showpage EOF</pre> 2013 AnonMoos 9crossing-knot symmetrical grid svg 9 crossing number knots and links Knots knot theory Images with PostScript source code Knots and links on white background Outline knots and links |