+

=

B = Point(yAxis)
b = OrthogonalLine(B, yAxis)
D = Point(b)
v = Vector(B, D)
a = OrthogonalLine(D, b)
A = Point(a)
c = OrthogonalLine(A, a)
C = Point(c)
u = Vector(A, C)
f: x(u)
d: x(v)
e: d + f
texte1: "(" + d + ") + (" + f + ") = " + e + ""
texte2: "(" + d + ") "
texte4: "(" + f + ")"
texte6: "" + e + ""
E = Intersect(a, xAxis)
g = OrthogonalLine(C, xAxis)
F = Intersect(g, xAxis)