Présentation de 1928.jps

25 setxunit 7.5 setborder 90 setangle_repere -1200 1200 setxrange -260 260 setyrange 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow .75 setlinewidth continu bleu /X {settvar #rpn# 1200 * Cos (*t) } def /Y {settvar #rpn# 260 * Sin (*t) } def 0 pi {X} {Y} Courbeparam