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This VBA code block highlights three new concepts:
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How to read input from a worksheet
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How to write from VBA code to a worksheet
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How to translate a worksheet simulation formula
into its VBA equivalent
Note how we read input from the worksheet in the
first line of the function. While we could have referenced the cell using
A1 notation - i.e., Range("D15"), it's a very good practice to use worksheet
range names whenever you're passing data to or from your VBA code. We'll
explain this in more detail later.
Writing the results back to the worksheet is simply a matter of reversing the
order of the statement. The worksheet cell named "HeadsCoinToss2" receives
the number of heads we got through tossing the coin the specified number of
times.
In our worksheet, the "tails" output cell D24 simply contains the worksheet
function "=IterationsCoinToss2 - HeadsCoinToss2"; the calculation is performed
in the worksheet rather than by the VBA code. The percent values in E23
and E24 are also calculated by the worksheet.
Now we'll take a more detailed look at using range names in the interaction
between worksheets and VBA.
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