unit normal vector to a line

Discussion in 'Homework Help' started by Hanck, Jan 17, 2009.

  1. Hanck

    Thread Starter Member

    Nov 25, 2008
    18
    0
    Region 1 is defined as 2x+y <= 0 and region 2 is defined as 2x+y >=0. If I were to used [gradient (2x+y)] /[its magnitude] to find a unit normal vector, the vector should heading from region 2 to 1 or 1 to 2?
     
    Last edited: Jan 17, 2009
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