Polare und Kreis
Author: Markus Hohenwarter

r = 7.0710678118654755
M = (7, -3)
u: x(M)
v: y(M)
k: (x - u)^(2.0) + (y - v)^(2.0) = r^(2.0)
P = (-8, 2)
p = Polar(P, k)
t_2, t_1 = Tangent(P, k)
A = Intersect(p, t_1)
B = Intersect(t_2, p)
Text2: "Tangente 2 :    " + t_2
Text1: "Tangente 1:    " + t_1