Présentation de 217.jps

/syracuse/bbgraf/albums/belles_02/217.jpg
200 setxunit 7.5 setborder 90 setangle_repere -0.5 0.5 setxrange -1 0.5 setyrange 0.1 0.1 settkstep .5 .5 setsubtkstep 0.5 0.5 setmkstep ticks ysubticks marks traceaxes axesarrow /R {settvar t Sin 2 t mul Cos mul } def 0 2 pi mul settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore