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It is used to prove Kronecker's lemma, which in turn, is used to prove a version of the strong law of large numbers under variance constraints. It may be used to prove Nicomachus's theorem that the sum of the first cubes equals the square of the sum of the first positive integers. [2]
Ghouila-Houri showed that a matrix is TU iff for every subset R of rows, there is an assignment : of signs to rows so that the signed sum () (which is a row vector of the same width as the matrix) has all its entries in {,} (i.e. the row-submatrix has discrepancy at most one). This and several other if-and-only-if characterizations are proven ...
The colon comes from a general Scala syntax mechanism whereby the apparent infix operator is invoked as a method on the left operand with the right operand passed as an argument, or vice versa if the operator's last character is a colon, here applied symmetrically. Scala also features the tree-like folds using the method list.fold(z)(op). [11]
In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total.Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted "+" is defined.
The algorithm performs summation with two accumulators: sum holds the sum, and c accumulates the parts not assimilated into sum, to nudge the low-order part of sum the next time around. Thus the summation proceeds with "guard digits" in c , which is better than not having any, but is not as good as performing the calculations with double the ...
Midwest. Classic Midwestern Christmas foods include casseroles (especially green bean casserole, cheesy broccoli casserole, and Tater Tot casserole) and cheese balls.
Pairwise summation is the default summation algorithm in NumPy [9] and the Julia technical-computing language, [10] where in both cases it was found to have comparable speed to naive summation (thanks to the use of a large base case).
Here’s the catch: only one entry per person or email is allowed, and duplicate names will be judged on a first-come, first-served basis—so don’t delay! The submission process is as simple as ...