Présentation de 2610.jps

25 setxunit 7.5 setborder 90 setangle_repere -5 5 setxrange -5 5 setyrange 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow /R {settvar #rpn# 1/((Cos(t/3))^3 } def 1 neg 10 settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore