2 setxyrapport
100 setxunit
7.5 setborder
90 setangle_repere
-3 3 setxrange
-6 6 setyrange
[1 1 .5 .5 .1 .1] {orange} Quadrillage
/quadrillagegray 0.4 def
1 setquadrillagexstep
1 setquadrillageystep
quadrillage
1 1 settkstep
.5 .5 setsubtkstep
1 1 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn# 3/x
} def
gsave
bleu
.75 setlinewidth
continu
{f} courbe
grestore
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