There's one trick, though, that separates the quants from the interns. That trick is Index/Match, a function that can find any value in any spreadsheet. One of the most common uses of Excel is as ...

An curved arrow pointing right. Once you have mastered VLOOKUP in Excel it's time to move on to INDEX/MATCH. This formula combination gives the same results but without the problems of VLOOKUP.

What he found is rather striking, as shown by the table below: Data and chart by The system with the lowest input latency -- the amount of time between when you hit a key and that keystroke ...