sum_product

(function from pyomo.core.util)

pyomo.core.util.sum_product(*args, **kwds)[source]

A utility function to compute a generalized dot product.

This function accepts one or more components that provide terms that are multiplied together. These products are added together to form a sum.

Parameters:

  • *args – Variable length argument list of generators that create terms in the summation.

  • **kwds – Arbitrary keyword arguments.

Keyword Arguments:

  • index – A set that is used to index the components used to create the terms

  • denom – A component or tuple of components that are used to create the denominator of the terms

  • start – The initial value used in the sum

Returns:

The value of the sum.