0
0/19
0/19/3
0/19/3/5
0/19/3/5/2 .
d = |rdn ⃗ | = |rd ⃗ |⋅ cos φ = |rd ⃗ ⋅n⃗| |n⃗| , . da |rd ⃗ |⋅|n⃗|⋅ cos φ = rd ⃗ ⋅n⃗. .
Damit wird d = |n⃗ ⋅ (Q⃗ -P1 ⃗ )| |n⃗| . .