Présentation de 850.jps

25 setxunit 7.5 setborder 90 setangle_repere -infinity 5 setxrange -5 5 setyrange 1 1 settkstep .5 .5 setsubtkstep 1 1 setmkstep ticks subticks marks traceaxes axesarrow .75 setlinewidth continu bleu /X {settvar #rpn# 4 * Cos (2*t) } def /Y {settvar #rpn# 4 * Sin (8*t) } def 0 pi {X} {Y} Courbeparam