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Vector coordinates and its points

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  1. Jul 17, 2015 #1
    Is there a way to know the points if I only have the vector coordinates and I can't use the origin as one of the points? For example, if I have vec(PQ) <-1,4,-5> . Is there a way to know the points of this vector?
     
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  3. Jul 18, 2015 #2

    haruspex

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    Do you mean, is there a way to find P and Q? No.
     
  4. Jul 18, 2015 #3
    Yes. That's what I mean. Thanks for your reply. i thought I got it wrong. :)
     
  5. Jul 18, 2015 #4

    HallsofIvy

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    Do you understand that a vector does NOT have specific "points"? A basic property of a vector is that two different "directed line segments" (for example, the segment from (1, 1, 1) to (0, 5, -4) and the segment from (3, 1, 2) to (2, 4, -3)) can represent the same vector and have no "points" in common.
     
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