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Taking derivative of a transposed matrix

  1. Apr 11, 2012 #1
    I have a matrix (z-m1) ^T where z is a matrix and 1 i a column where all the elements are 1. Can anyone help me with taking the derivative with respect to m?

    T is for transpose.
     
  2. jcsd
  3. Apr 11, 2012 #2

    Mark44

    Staff: Mentor

    z-m1 doesn't make sense to me. I'm assuming that z is an n x n matrix and 1 is an n x 1 matrix (column vector), so the subtraction is undefined.
     
  4. Apr 11, 2012 #3
    Thanks, I assumed z to be an n x n matrix as well but since that doesnt make any sence it must be a n*1 matrix and then I can just use ordinary derivation and I get

    (z-1)^T
     
  5. Apr 11, 2012 #4

    Mark44

    Staff: Mentor

    I think it would be -1T, where 1 is as you defined it.
     
  6. Apr 12, 2012 #5
    Yes of course, thanks
     
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