CMC: Given 2 positive integers between 1 and positive infinity (a and b), and an integer between 1 and 4 (n), perform either root mean square, arithmetic mean, geometric mean or harmonic mean on a and b, depending on n. You may choose the mapping
No, I don't mean ϕ = 1.618... and π = 3.14159.... I mean the functions.
φ(x) is the number of integers less than or equal to x that are relatively prime to x.
π(x) is the number of primes less than or equal to x.
Let's say that "not pi" is then π̅(x) and define it to be the number of composites...
@cairdcoinheringaahing Because I have posted the previous one and really you have came up with it nearly independently. Just a very tiny hint doesn't matter much.
@cairdcoinheringaahing And I have to go anyway, you have more time to explain it. Nice training session. I'll be back in about ~1 hour or 1 hour and a half. Do you think you'll be around then?