Beginning matlab user error, functions

I am taking a beginning course in MATLAB programming. My textbook was written by a professor using MATLAB 2009b. Perhaps that is irrelevant, but I want to know why I am getting errors trying to inititate functions. The following function code is written as a solution in my textbook.

This might be a novice question, please forgive me.

Answer 1

[madhan ravi]

Take that fminsearch() outside of the function

 doc function % see how to use functions