Featured Formulas

Random numbers without duplicates

In this example, the goal is to generate a list of random numbers without duplicates. This involves jumping through a few hoops because although the RANDARRAY function can easily generate a list of random integers, there is no guarantee that the numbers will be unique. In the explanation below,...Read more

Featured Functions

SUMPRODUCT Function

The SUMPRODUCT function multiplies arrays together and returns the sum of products. If only one array is supplied, SUMPRODUCT will simply sum the items in the array. Up to 30 ranges or arrays can be supplied. When you first encounter...Read more

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