March 2011
Beginner
485 pages
12h 2m
English
Content preview from Learn Excel 2011 for MacBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Understanding the Difference Between Formulas and Functions
In Excel, you can perform calculations in two main ways, each of which starts with an equal sign:
- By using a function. A function is a preset calculation that performs a standard calculation. For example, when you need to add several values together, you use the SUM() function—for instance, =SUM(1,2,3,4,5,6), which is simpler than =1+2+3+4+5+6 but has the same effect.
- By using a formula. A formula is a custom calculation that you create when none of Excel's functions does what you need. The word formula tends to sound imposing, but a formula can be a simple calculation; for example, to subtract 50 from 100, you can type =100-50 in a cell (the equal sign tells Excel you're starting a ...
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