%% auteur : uhphop
usecolor
tracerepere
quadrillage
marks
/A{0 0} def
A point
/B {2 2} def
B times2
RoyalBlue
{ 1 mul 0 add}courbe
/C {-2 2}def
C point
/D {1 -1} def
D times2
/E {2 1} def
E point
/F {4 2} def
F times2
purple1
{ -1 mul -1 add} courbe
/G {1 2} def
G point
/H {2 0} def
H times2
{ -1 mul -1 add} courbe
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