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I Unit Vector

  1. Mar 19, 2017 #1
    Why is there a need to find unit vector? If we are given a vector we can always find its direction.
     
  2. jcsd
  3. Mar 19, 2017 #2

    mfb

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    2016 Award

    Staff: Mentor

    More context would help. For calculations a unit vector is often useful because you save the step of dividing by its length (if you only want the direction, e.g. in scalar products).
     
  4. Mar 27, 2017 #3
    It is similar to the concept of unit price.
     
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