[karmakaze]

There are a few times where my better than average math skills were actually needed to solve a problem faced by the team I was on. These cases are so rare I'd say maybe 5 or less.

OTOH there are countless times my math sense of trends, growth, recognition of foldable cases, etc that I wouldn't be able to assess.

Can anyone give examples of math skills that would be useful day to day that a spreadsheet with simple formulas won't solve?

One example I can think of is solving a recurrence relation to get the big-O bound for an algorithm, but also rarely needed as the algorithm usually shows itself as being log, linear, poly or exp.

[karmakaze]

Of course there's "Fast Inverse Square Root — A Quake III Algorithm"

[0] https://www.youtube.com/watch?v=p8u_k2LIZyo