RFC: extracting coefficients of a multivariate polynomial

>>Well, this is quite a different problem.  If you need all the coefficients,
>>why did you provide a list of the exponent vectors?
>>You computed a huge list that was not necessary.

the degrees in exps are also the appearing monomials in the polynomial,

>>Could you tell us what is it that you are doing with the coefficients?

I use maxima to generate polynomial shape functions
for my finite element code (C++).

I need the coefficients for generating a horner scheme (C++ Code),

>>I am guessing that what you are doing could be done directly on the
>>polynomial, and the
>>extraction of the coefficients is unnecessary.

The C++ Code has to evaluate the polynomials,
so I have to teach my C++ Code how the polynomials are to be evaluated.

And as I pointed out earlier this is done *once*,
e.g when I add new polynomial shape function systems.

This is only a maintainment optimization for me.
At the moment I don't want to investigate this further.

I only thought there could be a drop-in replacement
for my function 'my_coeff' in maxima.

Andre