Présentation de 221.jps

/syracuse/bbgraf/albums/belles_02/221.jpg
200 setxunit 7.5 setborder 90 setangle_repere -1 1 setxrange -1 1 setyrange 0.1 0.1 settkstep .5 .5 setsubtkstep 0.5 0.5 setmkstep ticks ysubticks marks traceaxes axesarrow /R {settvar 2 t mul 3 div Sin } def 0 3 pi mul settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore