Présentation de 1475.jps

/syracuse/bbgraf/tmp/1475.jpg
100 setxunit 7.5 setborder 90 setangle_repere -1.5 1.5 setxrange -1.5 1.5 setyrange 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow /R {settvar #rpn# 1+.2*Sin(200*pi*t) } def 0 2 pi mul settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore