The IF function. See the related question below.
The function you're referring to is the IF function. In many programming languages and spreadsheet applications like Excel, IF allows you to specify a condition, and it returns one value if the condition is true and another value if it is false. The syntax typically follows this format: IF(condition, value_if_true, value_if_false).
The COUNTIF function in Excel counts the number of cells that meet a specific criterion within a range. You specify the range and the criteria, and it returns the count of cells that meet that condition.
A function.
In Excel, the ACos function returns the arccosine (in radians) of a number.The syntax for the ACos function is:ACos( number )number is a number between -1 and 1. It is the cosine of the angle that you wish to find.Applies To:Excel 2007, Excel 2003, Excel XP, Excel 2000
The Excel function that returns the number of cells in a range is COUNTA. This function counts all non-empty cells in the specified range, including numbers, text, and logical values. If you want to count only numeric values, you can use the COUNT function instead.
IF function
The PMT function returns the payment amount for a loan, so it has nothing to do with how dates are displayed. It returns numbers.
The MATCH function can do that.
The MATCH function.
NPER is a financial function in Excel. It returns the number of periods for an investment based on periodic, constant payments and a constant interest rate.
In Excel a function within another function would be called a nested function.
The TODAY function returns the current date when the function is executed. That would be when you open the document or when you insert the function for the first time in a cell.