Présentation de 2666.jps

/syracuse/bbgraf/tmp/2666.jpg
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 .75 setlinewidth continu bleu /X {settvar #rpn# 3*Cos(t)-Cos (3*t) } def /Y {settvar #rpn# 3*Sin(t)-Sin (3*t) } def 0 4 pi mul {X} {Y} Courbeparam