Randomly generated numbers are most often used to generate data that we want to use to test some reports. Once upon a time, they were obtained by taking over the system time, so they would take a hundred or a thousandth of a second as a random number. Today, probably every program language has functions for generating random numbers, including Excel. For this purpose, the functions RAND and RANDBETWEEN are used …
Rounding the numbers in Excel is done automatically. Nevertheless, there is sometimes a need to influence how the rounding is done. This is crucial when we create reports with data expressed in thousands or millions, when decimals represent significant amounts of money. We can do this by adjusting rounding based on how the number is displayed or using rounding numbers.
Besides basic calculating operators like addition (+), subtraction (-), multiplication (*), and division (/) Excel contains even a handful of functions that we can use to perform various mathematical operations. Also, there are functions for calculating the absolute value, returning the number sign, and some other functions that can be of importance, for example, to create conditions in conditional formatting, when we want to color each different order in different colors …
Aggregation is a term that signifies unification and calculation. It combines one or more data sets, which are given as function arguments, for performing a mathematical operation. This may be: summing up a series of data, counting, averaging, calculating the minimum or maximum value of a given set of numbers… Aggregate functions are very commonly used and should know them well.
Excel has a large number of functions, organized according to categories (mathematical, statistical, logical, informative, financial, functions for working with text, etc.). When we start typing the formula and choosing the desired function it automatically displays the syntax in the form of a tooltip that facilitates the input of the function arguments. We can also add functions by selecting a window to insert functions that will be further discussed in the text that follows …