EXCEL: First Formulas
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Formulas must begin with an equal sign =
Formulas may be arithmetic expressions, and may contain references to individual cells:
o Example: (A2+4) / (B3-6) * 100
o These expressions may also contain functions
o The formula is displayed in the Formula Bar
o The result is displayed in the cell (unless being edited).
Functions have a name that describes what they do
Functions have one or more arguments (aka parameters) that give information to the formula
o Arguments are separated by commas
Functions result in a value
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Specifying a Cell Range: use the top/left cell name, followed by a colon , followed by the bottom/right
cell name.
Some common functions:
- sum(cellRange)
- average(cellRange)
- count(cellRange)
- max(CellRange)
Examples:
- sum(A1:B5)
- average(A1:B5)
all up all the numbers in the range
calculate the average of the numbers in the range
count how many cells in the range are not empty
find the highest value in the range
result: adds up all the numbers in A1,A2,A3,A4,A5,B1,B2,B3,B4,B5
result: calculates the average of the same cells; BLANK cells are NOT
counted as zeros.