%% auteur :
usecolor
tracerepere
quadrillage
marks
/A{1 2} def
A point
/B{2 3} def
B times2
bleu
{1 mul 1 add} courbe
/C{0 0} def
C point
/D{2 2} def
D times2
bleu
{1 mul 0 add} courbe
RosyBrown1
/E{-2 2} def
E point
/F{1 -1} def
F times2
{-1 mul 0 add} courbe
/G{2 1} def
G point
/H{4 2} def
H point
{0.5 mul 0 add} courbe
/I{1 2} def
I point
/J{2 0} def
J point
J 3 cercle
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