Kind of weird to pick sqrt(512) as an example to show the practical use. I mean you'd be better of with a base 2 logarithm as you're basically calculating 2^4.5

Kind of weird to pick sqrt(512) as an example to show the practical use. I mean you'd be better of with a base 2 logarithm as you're basically calculating 2^4.5 = sqrt(2)*2^4 = 1.4... * 16 = 22.4(ish).