It is a formula that the user creates themselves, instead of using the built-in functions.
The Formula Bar.
You can use the Formula Auditng which includes the Evaluate facility and Trace Precedents, which would be useful.
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yes
User generated content - is any data that's not been created by the program itself.
In Excel an equation can be a formula. All formulas in Excel must start with the equals sign. That is what tells Excel it is a formula.
The average formula, in programs like Microsoft Excel and many others, take the sum of all the numbers that a user inputs into a list and divides it by the number of numbers in that same list.
The average formula, in programs like Microsoft Excel and many others, take the sum of all the numbers that a user inputs into a list and divides it by the number of numbers in that same list.
There is no formula error button in Excel. However, there is an Error Checking button on the Formulas ribbon in the Formula Auditing section in Excel 2007.
The PVIFA formula in excel refers to Present Value Interest Factor of Annuity. This is able to be calculated in an excel document.
Replicating means copying. So replicating a formula in Excel is copying a formula. This is a very common activity that is done in Excel. You create one formula and then use it in other places on the worksheet.
The combined sign has no special meaning. Any formula in Excel starts with an equal sign. To refer to a cell, you can write, for example, =A1. This can also be written as =+A1. The "+" isn't really necessary in this case. Most likely, a user started the formula with a "+" (out of old habit, since that's what people used to do in older spreadsheet programs), and Excel added the equal sign, which is required in Excel, automatically.