E: X = [-2, 0, 1] + r·[1, 1, 1] + s·[-1, 2, 0]
Wie wäre es mit den Spurpunkten
Sx = [-2, 0, 1] + r·[1, 1, 1] + s·[-1, 2, 0] = [x, 0, 0] --> x = -3.5 ∧ r = -1 ∧ s = 0.5
Sy = [-2, 0, 1] + r·[1, 1, 1] + s·[-1, 2, 0] = [0, y, 0] → y = -7 ∧ r = -1 ∧ s = -3
Sz = [-2, 0, 1] + r·[1, 1, 1] + s·[-1, 2, 0] = [0, 0, z] → z = 7/3 ∧ r = 4/3 ∧ s = - 2/3
Achsenabschnittsform
E: x/(-3.5) + y/(-7) + z/(7/3) = 1
Koordinatenform
E: 2·x + y - 3·z = -7