Teht. 241

A = Point(yAxis)
B = (2, 1)
f = Segment(A, B)
g: y = (-x) - 1
teksti1 = LaTeX(g, true, true)
C: (0, 0)
c = Circle(C, 0.5)
D = Point(c)
h = Ray(C, D)
E = Intersect(h, g)
F = Intersect(h, f)
i = OrthogonalLine(F, f)
D_1: (x(D) + (2 * abs(x(D) - x(F))), y(D))
heijastunutsäde = Ray(F, D_1)