While we have the Python built-in function sum() which sums the elements of a sequence (provided the elements of the sequence are all of numeric type), it’s instructive to see how we can do this in a ...
Abstract: We study the descriptive complexity of summation problems in Abelian groups and semigroups. In general, an input to the summation problem consists of an Abelian semigroup G, explicitly ...
Summation notation $$\sum_{i=1}^8 a_i$$ Expands to $a_1 + a_2 +... + a_8$ $$\sum_{i=5}^8 a_i$$ Expands to $a_5 + a_6 +... + a_8$ $$\sum_{i=1}^8 a_ib_ix^i$$Expands to ...
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