You can use the Insert Function button fx on the Formula bar to find an Excel function by typing a description of the formula at the Insert Function dialog box, in the Search for a function text box and then click Go.
It enables you to abandon typing or editing the formula you are working on, or the data you are typing in.
Function
function
Simply type in the cell like: =A3+C6 You can also click on a cell as you are typing the formula and it will be included in the formula.
the asterisk is used for what function when building a formula in excel
A formula.
The F4 key can be used as you are typing in the cell reference in order to change it to a different reference type.
an equal sign =
Excel has a ZTEST function. It has the format ZTEST(array, µ0, sigma).
A nested formula is where one or more functions are placed inside another function to make a formula. For example you can write a formula where you put an IF function within an IF function and this would be a nested formula.
prefix the excel function with application. eg. a=application.evaluate("1+2+3")
The SUM function would be the most commonly used function in Excel.