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Derivative convex quadratic

  1. Oct 17, 2011 #1
    [itex]\frac{d}{dx}f(x)=\frac{d}{dx}[ \frac{1}{2}x_{}^{T}Qx-b_{}^{T}x][/itex]

    how to get this derivative, what is the answer? is there textbook describe it?
  2. jcsd
  3. Oct 17, 2011 #2


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    Please don't cross-post.
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