I have a plane x+2*y+3*z = 0 and a point A(1,2,3).
From A there are 3 lines :
P := (1, 2, 3) P1 := (-1, -1, 0) L1 := P+t*(P1-P)
How to find the cutting points between L1 and the above plane?
How to find a cutting points between planes? 2 3 4 planes etc.
It is urgent, please help me!