Ajout d'une image de triangles imbriquées

Notebooks/imgs_eval/img_exo_triangles.eps

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Notebooks/imgs_eval/img_exo_triangles.py

+from turtle import *
+
+speed(0)
+WIDTH, HEIGHT = 500, 500
+
+screen = Screen()
+screen.setup(WIDTH + 4, HEIGHT + 8)  # fudge factors due to window borders & title bar
+
+
+penup()
+for k in range(21):
+    goto(-500+k*50,-500)
+    pendown()
+    goto(-500+k*50,500)
+    penup()
+for k in range(20):
+    goto(-500,-500+k*50)
+    pendown()
+    goto(500,-500+k*50)
+    penup()
+
+# pour positionner le curseur en bas à gauche
+penup()
+goto(-200, -200)
+pendown()
+
+# mettre le bon style de trait
+width(5)
+color("red")
+
+def triangle(longueur):
+    for _ in range(3):
+        forward(longueur)
+        left(120)
+# à compléter avec maximum 5 lignes
+x = 50
+for _ in range(8):
+    triangle(x)
+    x = 50 + x
+
+ts = getscreen()
+ts.getcanvas().postscript(file="img_exo_triangles.eps")
+
+done()
\ No newline at end of file