Présentation de 1930.jps

/syracuse/bbgraf/tmp/1930.jpg
-1.6 2.1 setxrange -1.6 2 setyrange 60 setxunit 90 setangle_repere traceaxes axesarrow /O{0 0} def /cerc{O 1} def cerc cercle /X {45 cerc cpoint} def /Y {120 cerc cpoint} def /Z {240 cerc cpoint} def /T {315 cerc cpoint} def gsave pointilles [-0.5 -1.5 -0.5 1.5] ligne [0.70711 -1.5 0.70711 1.5] ligne grestore <latex> $u$ </latex> 2.05 0 [1.4 dup] dltexlabel <latex> $v$ </latex> 0 1.9 [1.4 dup] crtexlabel [-0.5 0 0.70711 0] points gsave 4.2 setlinewidth 45 120 cerc Cercle 240 315 cerc Cercle grestore /dotscale {2.0 dup} def gsave [X Y Z T] {point} plot grestore