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Inverse Linear Transform

  1. Oct 17, 2012 #1
    I am trying to find a real life inverse linear transform which can be used to motivate students. Does anyone have an example or two? I am looking for an example which will have a real impact. Thanks in advance.
     
    Last edited: Oct 17, 2012
  2. jcsd
  3. Oct 17, 2012 #2

    HallsofIvy

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    The "mapping" of points on a map to the corresponding points on the earth is a linear transformation. (Providing it is not a map of the entire globe. The mapping from the earth to a Mercator projection is not a linear transformation.)
     
  4. Oct 17, 2012 #3
    Sorry but should have said inverse linear transform.
     
  5. Oct 17, 2012 #4
    Introduce them to the Hill Cipher
     
  6. Oct 18, 2012 #5

    HallsofIvy

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    ??That is an inverse transformation, the inverse of the mapping from the earth to the map. Every one to one linear transformation is the inverse of another.
     
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