r·[4, 1, 1] + s·[0, -1, 2] = [4, -1, 5] --> r = 1 ∧ s = 2 --> parallel oder in der Ebene
[2, 0, 1] + r·[4, 1, 1] + s·[0, -1, 2] = [6, 0, 4] --> r = 1 ∧ s = 1 --> in der Ebene
Abstand P zu g
|([7, 1, 5] - [6, 0, 4]) ⨯ [4, -1, 5]| / |[4, -1, 5]| = √651/21 = 1.215 LE
Abstand P zu E
N = [4, 1, 1] ⨯ [0, -1, 2] = [3, -8, -4]
|([7, 1, 5] - [2, 0, 1])·[3, -8, -4]| / |[3, -8, -4]| = 9/89·√89 = 0.9540 LE