Hello,(adsbygoogle = window.adsbygoogle || []).push({});

Could you help me derive this function, so I can find the minimum of it.

[tex]z=\sum_{i=1}^{n}{\sqrt{\left( x-x_{i} \right)^{2}+\left( y-y_{i} \right)^{2}}}[/tex]

Thank you.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Derivative of summation

**Physics Forums | Science Articles, Homework Help, Discussion**