Recent content by totototo

Thanks a lot

Hi; First i you read my problem and feel that it does not belong to this forum please inform me which one is the right one. I have 2 lines L1,L2 in 3-dimensions L1 has (x1,y1,z1) (x2,y2,z2) L2 has (x3,y3,z3) (x4,y4,z4) How can I know that these two lines are intersected? Thanks toto