IN THIS CHAPTER
Using functions to make your VBA expressions more powerful
Using the VBA built-in functions
Using Excel worksheet functions in your VBA code
Writing custom functions
There are three flavors of functions: those built into VBA (vanilla), those built into Excel (strawberry), and other functions written in VBA (chocolate). Previous chapters mention how you can use functions in your VBA expressions, and this chapter provides a full explanation. Functions can make your VBA code perform some powerful feats, with little or no programming effort required. If you like that idea, this chapter’s for you.
Except for a few people who think Excel is a word processor, all Excel users incorporate worksheet functions in their formulas. The most common worksheet function is the SUM function, and you have more than 500 others at your disposal.
A function essentially performs a calculation and returns a single value. The SUM function, of course, returns the sum of a range of values. The same holds true for functions ...