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High-Speed Arlan B Calculator (Calculates the number of lines n based on call loss rate B and call volume a)

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High-Speed Arlan B Calculator
Calculates the number of lines n based on the target call loss rate B and call volume a.
Specify the target call loss rate within the range of 0.01% to 99.99%.
Also display the call loss rate B for the calculated number of lines, n.

Earlan’s Formula B
B = (a^n/n!)/(1+a/1!+a^2/2!+a^3/3!+…+a^n/n!)

B: Call loss rate
a: Call volume
n: Number of circuits
Target Loss Rate B
%[0.01–99.99]
Quantity a
Arlan
Number of lines n LineCall Loss Rate B %

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