A: (5, -1, 1)
B: (0, 3, 0)
C: (0, -1, 3)
O: (0, 0, 0)
a = Vector(O, A)
v = Vector(A, B)
w = Vector(A, C)
E = Surface(a + (r * v) + (s * w), r, -10, 10, s, -10, 10)
S: E(0.2, 0.6)
F: (0.8, -1.4, 0)
G: F + (1.5 * Vector[F, S])
d1, c, a_1, b = Polygon(A, B, C)
f = Segment(F, G)
g = Line((x(F), y(F), z(F)), Vector[(x(Vector[F, G]), y(Vector[F, G]), z(Vector[F, G]))])
h = Segment(G, A)
i = Segment(G, B)
j = Segment(C, G)
L: (1.25, 0, 1.5)