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Sum Operator (Solver Foundation)

Solver Foundation 3.0

Evaluates an expression for each possible combination of values of some iterator variables, and returns the sum of the results.

Sum[iters…, expr]

Sum[{p, Products}, x[p]]
Sum[{p, Products}, {s, Sources}, x[p, s]]
Sum[{i, 5}, x[i]]

Sum uses the same iterator forms as Foreach. If no iterators are specified, Sum just evaluates expr.

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