Re: help on matlab-octave porting

[David Bateman]

David Bateman wrote:

>Shuaizhang Feng wrote:
>  
>
>>Hi 
>>
>>A friend of mine needs to port his matlab code into
>>octave and would like to get some help.  The difficult
>>part concerns to matlab built-in functions: fmincon
>>and hypergeom.  If you think you can help, please
>>contact him directly at address@hidden  He is
>>willing to pay for this.
>>
>>thanks.
>>
>>sz
>>
>>
>>    
>>
>
>Hypergeom is a symbolic toolbox function. Basically, if an integration
>can't give any useful answer, it gives a solution in terms of
>hypergeomtric functions (horribly unstable beasts). So if a symbolic
>version of this function is what you really want maybe you should be
>asking yourself if octave or in fact even matlab is what you really want
>to use. It seems that a Maple, mathematica or the open source maxima
>programs are more apprpriate than matlab. If you want a numerical result
>of the evaluation of a hypergeometric function, then gsl and the octave
>bindings to GSL have this (see hyperg_OF1 function of octave-forge)
>
>As for fmincon, yes octave doesn't have it, and if you convince some one
>to write it, having a constrained minimization function would be useful..
>
>D.
>
>  
>
Sorry to respond to my own message, but also check the octave function
qp, which probably does pretty much what you want for fmincon...

D.