How-To Geek on MSN
Don't trust Excel's COUNTA function to count non-blank cells—here's a better method
Counting non-empty cellsThe COUNTBLANK-COUNTA conflict (and how to fix it)Summary: Choosing the right counting functionIn ...
My memory on this is a little sketchy, but I think that when you make a call on a virtual function, the virtual function table must be consulted before method invocation, whereas non-virtual functions ...
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