Recent content by rider-pt

  1. R

    Deriving the Minimum of a Summation Function - How Do I Do It?

    It is not homework. It is just some curiosity of mine. What I want to do is find the point (x,y), that has the smallest sum of distances to a series of points (x_{1},y_{1}), (x_{2},y_{2}), (x_{3},y_{3}), ...,(x_{n},y_{n}). Something like a centre of gravity. I don't need just the result, I...
  2. R

    Deriving the Minimum of a Summation Function - How Do I Do It?

    Hello, Could you help me derive this function, so I can find the minimum of it. z=\sum_{i=1}^{n}{\sqrt{\left( x-x_{i} \right)^{2}+\left( y-y_{i} \right)^{2}}} Thank you.
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