Fichier triangles-oa2009.mp (figure 1) — Modifié le 4 Octobre 2009 à 23 h 34
verbatimtex
%&latex
\documentclass[12pt]{article}
\usepackage{fourier}
\begin{document}
etex
pair A,B,C;
A = origin;
B = (4cm,0);
C = B rotated 60;
pair P[];
P1 = A;
P2 = (1/3)[A,B];
P3 = (2/3)[A,B];
P4 = B;
P5 = (1/3)[B,C];
P6 = (2/3)[B,C];
P7 = C;
P8 = (1/3)[C,A];
P9 = (2/3)[C,A];
picture disque;
disque := image(
fill fullcircle scaled 0.7cm
withcolor white;
draw fullcircle scaled 0.7cm
withpen pencircle scaled 1.5pt
withcolor (0.7,0.5,0);
);
picture triangle;
triangle := image(
draw A--B--C--cycle
withpen pencircle scaled 1pt
withcolor (0.2,0.1,0.5);
for i:=1 upto 9: draw disque shifted P[i]; endfor;
);
beginfig(0);
draw triangle;
endfig;
beginfig(1);
draw triangle;
label(btex 5 etex,P1);
label(btex 3 etex,P2);
label(btex 4 etex,P3);
label(btex 8 etex,P4);
label(btex 9 etex,P5);
label(btex 1 etex,P6);
label(btex 2 etex,P7);
label(btex 7 etex,P8);
label(btex 6 etex,P9);
endfig;
beginfig(2);
draw triangle;
label(btex 5 etex,P1);
label(btex 6 etex,P2);
label(btex 1 etex,P3);
label(btex 8 etex,P4);
label(btex 7 etex,P5);
label(btex 3 etex,P6);
label(btex 2 etex,P7);
label(btex 9 etex,P8);
label(btex 4 etex,P9);
endfig;
beginfig(3);
draw triangle;
label(btex 2 etex,P1);
label(btex 5 etex,P2);
label(btex 7 etex,P3);
label(btex 3 etex,P4);
label(btex 9 etex,P5);
label(btex 4 etex,P6);
label(btex 1 etex,P7);
label(btex 8 etex,P8);
label(btex 6 etex,P9);
endfig;
beginfig(4);
draw triangle;
label(btex 2 etex,P1);
label(btex 9 etex,P2);
label(btex 5 etex,P3);
label(btex 3 etex,P4);
label(btex 8 etex,P5);
label(btex 1 etex,P6);
label(btex 7 etex,P7);
label(btex 4 etex,P8);
label(btex 6 etex,P9);
endfig;
beginfig(5);
draw triangle;
label(btex 1 etex,P1);
label(btex 9 etex,P2);
label(btex 5 etex,P3);
label(btex 4 etex,P4);
label(btex 6 etex,P5);
label(btex 2 etex,P6);
label(btex 7 etex,P7);
label(btex 3 etex,P8);
label(btex 8 etex,P9);
endfig;
beginfig(6);
draw triangle;
label(btex 4 etex,P1);
label(btex 8 etex,P2);
label(btex 6 etex,P3);
label(btex 1 etex,P4);
label(btex 9 etex,P5);
label(btex 2 etex,P6);
label(btex 7 etex,P7);
label(btex 3 etex,P8);
label(btex 5 etex,P9);
endfig;
beginfig(7);
draw triangle;
label(btex 3 etex,P1);
label(btex 8 etex,P2);
label(btex 6 etex,P3);
label(btex 2 etex,P4);
label(btex 9 etex,P5);
label(btex 1 etex,P6);
label(btex 7 etex,P7);
label(btex 4 etex,P8);
label(btex 5 etex,P9);
endfig;
beginfig(8);
draw triangle;
label(btex $n_4$ etex,P1);
label(btex $n_5$ etex,P2);
label(btex $n_6$ etex,P3);
label(btex $n_7$ etex,P4);
label(btex $n_8$ etex,P5);
label(btex $n_9$ etex,P6);
label(btex $n_1$ etex,P7);
label(btex $n_2$ etex,P8);
label(btex $n_3$ etex,P9);
endfig;
beginfig(9);
draw triangle;
label(btex 5 etex,P1);
label(btex $n_5$ etex,P2);
label(btex $n_6$ etex,P3);
label(btex 8 etex,P4);
label(btex $n_8$ etex,P5);
label(btex $n_9$ etex,P6);
label(btex 2 etex,P7);
label(btex $n_2$ etex,P8);
label(btex $n_3$ etex,P9);
endfig;
end.