Ondrej Certik wrote: > On Jan 13, 2008 5:58 PM, Alan Bromborsky <[EMAIL PROTECTED]> wrote: > >> The quickest way for me to get my geometric algebra module working with >> sympy is to override the +,-, and * operators in numpy so that they work >> with sypmy objects as array components. However, I have not found any >> references on how to override operators in exisiting modules. Is there >> anyway to do this without modifying the code in the numpy module? >> > > Don't know about numpy. But I think the quickest way is to get rid > of the sequence protocol in sympy, i.e. don't use > > sin(x)[:] but sin(x).args[:] > > then numpy should start working with sympy like a charm. This is the issue: > > http://code.google.com/p/sympy/issues/detail?id=556 > > And I submitted my first code yesterday: > > http://groups.google.com/group/sympy-patches/browse_thread/thread/bc52b09cea44893d > > now the whole sympy needs to be fixed to use .args[:] and that's it. > > Ondrej > > > > > How would you use this so that if X and Y are numpy arrays stuffed with sympy expressions and z is a sympy expression so that X+Y, X-Y, and z*X are correctly evaluated???????
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