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Why I'm swapping my PivotTables for the PIVOTBY function in Excel

PivotTables are static relics; PIVOTBY is the responsive, resilient, and fully auditable future of the modern Excel ...
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Math tutorial for composing two functions

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...