Unconstrained optimization using Hooke & Jeeves 1.0

Again, this SEEMS to be a reasonably crafted code. I wish it had better documentation, that explicitly said what the parameters did and what shape and size they should be. Some examples of use would be helpful. For example, this simple test case should be absolutely trivial to solve:[xopt,Opt,Nav]=hkjeeves(@norm,[1 1])Optimization by hkjeeves terminated!xopt = -2.4633e-16 1Opt = 1Nav = 40Clearly the minimum should happen at [0 0]. It was not obvious to me why it failed, at least not until I read the code fairly carefully. The starting guess MUST be a column vector for this code to work on a multivariate function. This was completely undocumented of course.A good coding job does not stop when you write the last line of code. It becomes good code only when the help is complete. Only when the documentation fully describes how to use that code. To be excellent, code should not only be good, it should be robust against simple things like whether a variable specified only as a "vector" must a row or column vector. Excellent code should be friendly to the user.

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