Enicocephaloidea

= January 16 = ==Inverse of Erlang C formula== I`m looking to find the inverse of the formula, so that if I know A, and know the maximum accepatble value of PW, I can calculate the lowest value of N - can the formula be reversed to do this. So far I`ve been using trial and improvement, which is rather tedious - unfortunately the maths needed to .....
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