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Sum-free sequence. In mathematics, a sum-free sequence is an increasing sequence of positive integers , such that no term can be represented as a sum of any subset of the preceding elements of the sequence. This differs from a sum-free set, where only pairs of sums must be avoided, but where those sums may come from the whole set rather than ...
Sum and Product Puzzle. The Sum and Product Puzzle, also known as the Impossible Puzzle because it seems to lack sufficient information for a solution, is a logic puzzle. It was first published in 1969 by Hans Freudenthal, [1] [2] and the name Impossible Puzzle was coined by Martin Gardner. [3] The puzzle is solvable, though not easily.
A worksheet, in the word's original meaning, is a sheet of paper on which one performs work. They come in many forms, most commonly associated with children's school work assignments, tax forms, and accounting or other business environments. Software is increasingly taking over the paper-based worksheet. It can be a printed page that a child ...
Hood Code is an organization that provides free coding classes to students who live in New York City’s public housing. These apartments are home to more than half a million low-income families ...
1. Microsoft Excel Personal Monthly Budget Spreadsheet. Where to get it: Microsoft 365. As a heads up, if you’re interested in free Microsoft Office budget templates, you’ll likely find the ...
In mathematics, a Kloosterman sum is a particular kind of exponential sum.They are named for the Dutch mathematician Hendrik Kloosterman, who introduced them in 1926 when he adapted the Hardy–Littlewood circle method to tackle a problem involving positive definite diagonal quadratic forms in four as opposed to five or more variables, which [vague] he had dealt with in his dissertation in 1924.
Larry Fink joins Jamie Dimon and Jerome Powell is sounding the alarm on ‘snowballing’ national debt: ‘The situation is more urgent than I can ever remember’
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