Présentation de 1521.jps

/syracuse/bbgraf/tmp/1521.jpg
200 setxunit 7.5 setborder 90 setangle_repere -1.95 1.95 setxrange -1.95 1.95 setyrange .25 0.25 settkstep .125 .125 setsubtkstep .5 5 setmkstep ticks subticks marks traceaxes axesarrow /R {settvar #rpn# 1+2*Sin(23*t) } def 0 2 pi mul settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore