Présentation de 8674.jps

1 setxyrapport 25 setxunit 7.5 setborder 90 setangle_repere -5 5 setxrange -5 5 setyrange /quadrillagegray 0.4 def 1 setquadrillagexstep 1 setquadrillageystep quadrillage 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow /R {settvar #rpn# 5+exp(-0.1*t) } def 2 pi mul neg 2 pi mul settrange gsave .75 setlinewidth mixte bleu (R) courbepolar grestore