To count the number of birthdays in a list, by month, you can use a formula based on the SUMPRODUCT and MONTH functions. In the example shown, E5 contains this formula: =SUMPRODUCT(--(MONTH(birthdays)=MONTH(D5&1))) where birthdays is the named range …Read more
The SCAN function applies a custom calculation to each element in a given array or range and returns an array that contains the intermediate values created during the scan. SCAN can be used to generate running totals, running counts, and other calculations that show intermediate results. Read more
Combinations and permutations are two basic ways to count possibilities, used in probability, statistics, games, passwords, and lotteries. This article explains the difference between them, when order and repetition matter, and the Excel functions you can use to calculate each case: FACT, PERMUT, …Read more
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