User inspectorg4dget - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-25T03:21:01Z http://mathoverflow.net/feeds/user/19344 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/81203/equation-to-a-perpendicular-line-along-a-plane Equation to a Perpendicular Line Along A Plane inspectorG4dget 2011-11-17T21:28:35Z 2011-11-17T21:28:35Z <p>Greetings,</p> <p>I have the following problem, which Google has not yet been able to answer.</p> <p>I have the equations to two lines in 3D space. I also have the co-ordinates of a single point on each line. I can therefore find the co-ordinates of a third point on either line and compute the equation to a plane that contains both lines.</p> <p>Now what I need to do is to compute the equation to the normal lines to each of these lines so that both normal lines are also on this plane. After this, I need to find the point of intersection of these two lines.</p> <p>I'd appreciate any help on this topic.</p> <p>Thank you.</p> <p>PS: This is my first post on MO, so if I'm violating any MO rules, please point them out so that I can correct my post and not make such a mistake in the future</p> http://mathoverflow.net/questions/81203/equation-to-a-perpendicular-line-along-a-plane Comment by inspectorG4dget inspectorG4dget 2011-11-17T21:51:54Z 2011-11-17T21:51:54Z Thank you for pointing this out, Suvrit. I should try to delete this question