Présentation de 7968.jps

/syracuse/bbgraf/tmp/7968.jpg
25 setxunit 7.5 setborder 90 setangle_repere -10 10 setxrange -10 10 setyrange 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow /R {settvar #rpn# Exp(-23t) } def -4 4 settrange gsave .75 setlinewidth continu bleu (R) courbepolar grestore