z

w

z+w

A = Intersect(xAxis, yAxis)
B = (3.44, 1.94)
u = Vector(A, B)
C = (-1.2, 1.3)
v = Vector(A, C)
a = Line(C, u)
b = Line(B, v)
D = Intersect(a, b)
w = Vector(A, D)
c = Segment(C, D)
d = Segment(D, B)