$\vec{u}$

Hilfsebene

Q: (4, 0, 2)
P: (3, 3, 0)
u: (-1, 0.5, 0)
P1: Q + u
g = Line(Q, P1)
X = Point(g)
f = Segment(P, X)
v = Vector(P, X)
a: abs(v)
Text1: "d(Q,X) = " + a + ""
w = Vector(Q, P1)
b = Vector(P, X)
H: (((x, y, z) - P) * u) = 0
F = Intersect(g, H)
c = true