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Sorry about that.
I had a maths question I was really stuck on for some time and gave up on but then suddenly deduced the answer just one moment straight after I posted the question!
The maths question was;
If
1 + 1/r = 2^(1/m)
where r ∈ ℕ, r>0, m∈ℝ, m>0
what is m?
And the solution is simply;
m = log(2) / log(1/r + 1)
Funny how I forgot for a long while the relevant maths I learned at university but then it suddenly all comes flooding back to me. But that was about 30 years ago when I learned it.