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  2. Summation by parts - Wikipedia

    en.wikipedia.org/wiki/Summation_by_parts

    In mathematics, summation by parts transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation of certain types of sums. It is also called Abel's lemma or Abel transformation , named after Niels Henrik Abel who introduced it in 1826.

  3. Fold (higher-order function) - Wikipedia

    en.wikipedia.org/wiki/Fold_(higher-order_function)

    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]

  4. Group method of data handling - Wikipedia

    en.wikipedia.org/wiki/Group_method_of_data_handling

    There are many different ways to choose an order for partial models consideration. The very first consideration order used in GMDH and originally called multilayered inductive procedure is the most popular one. It is a sorting-out of gradually complicated models generated from base function. The best model is indicated by the minimum of the ...

  5. Summation - Wikipedia

    en.wikipedia.org/wiki/Summation

    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.

  6. Function (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Function_(computer...

    A function definition starts with the name of the type of value that it returns or void to indicate that it does not return a value. This is followed by the function name, formal arguments in parentheses, and body lines in braces. In C++, a function declared in a class (as non-static) is called a member function or method.

  7. Gap CEO says holidays are off to a 'strong' start, he is ...

    www.aol.com/finance/gap-ceo-holidays-off-strong...

    Holiday shoppers are falling into the Gap early."Our holiday season is off to a strong start," Gap CEO Richard Dickson told Yahoo Finance on Thursday. "It gives us the confidence to raise our ...

  8. Shop the coziest gift ideas for all your favorite homebodies ...

    www.aol.com/lifestyle/shop-the-coziest-gift...

    'Tis the season for getting cozy. If you're anything like me, curling up on the couch with all things soft and warm sounds like a perfect night.

  9. Schwartzian transform - Wikipedia

    en.wikipedia.org/wiki/Schwartzian_transform

    In computer programming, the Schwartzian transform is a technique used to improve the efficiency of sorting a list of items. This idiom [1] is appropriate for comparison-based sorting when the ordering is actually based on the ordering of a certain property (the key) of the elements, where computing that property is an intensive operation that should be performed a minimal number of times.