%% auteur :
200 setwidth
.9 .9 scale
60 setangle_repere
1.5 setxyrapport
-2.5 3 setxrange
-2 3.5 setyrange
-5 5 setxrange
-5 5 setyrange
quadrillage
/A {3 -1} def
/E {2 2} def
/B {2 3} def
/F {0 3} def
/C {-1 2} def
/G {2 0} def
/D {-2 0} def
/H {3 -2} def
/O {0 0} def
/I {1 0} def
/J {0 1} def
/u {-1 3} def
/v {-2 0} def
/w {3 -2} def
/z {5 -2} def
tracerepere
[A B C D E F G H] points
setTimesItalic
(A) A dctext
(E) E ultext
(B) B urtext
(F) F ultext
(C) C ultext
(G) G urtext
(D) D ultext
(H) H urtext
(O) O dctext
(I) I dctext
(J) J ltext
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