Déplacer le point M à l'aide de la souris

A = Intersect(xAxis, yAxis)
B = Point(xAxis)
C = (7, 3)
D: A + Vector[B, C]
a = Segment(A, B)
b = Segment(B, C)
c = Segment(C, D)
d = Segment(D, A)
l = Line(D, B)
M = Point(l)
K = Mirror(C, M)
e = Segment(C, K)
f = Line(K, a)
k = Line(A, D)
I = Intersect(k, f)
g = Line(K, d)
h = Line(B, A)
J = Intersect(g, h)
i = Line(J, I)