Hello,
I have to compute a multiple summation (not an integration because the independent variables a
are discrete) for all the values of a function of several variables f
(x_1,...,x_n), that is
sum ... sum f(x_1,...,x_n) x_1 x_n
have you some suggestion? Is it possible?
I know that for multiple integration there is the function adapt, but it has at most n=20. In my case n depends on the dimension of the dataset and, hence, it could be bigger.
Thank you, Paolo
I's try to vectorizing f() and apply it on the set of all permutations.
Uwe Ligges
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