false results in Rosenbrock equation

[Carrico, Paul]

Dear all
 
In the Rosenbrock equation it is well known the 2 minima are (1,1) and
(-1,1) ; in the attached where I want to test several optimization
macros (and basic &particular functions) I've a different result as
descibed herebellow : is there a mistake in the input file or does
something go wrong ?
 
Please note the functions inputs are as general as possible to be used
with the different macros (fminsearch, optim and so on)
 
Paul
 
 
 
#################################################################"
    - X1 optimized = 0.229978
    - X2 optimized = 0.0240434

 

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