Calculates the Inductance of a single round wire of common conducting materials using the formula and data referenced below.

From *Transmission Line Design Handbook* by Brian C Wadell, Artech House 1991 page 382 paragraph 6.2.1.1

The self inductance of a straight wire at high frequency is:

Where d is the diameter in cm

l is the Length in cm

f is the Frequency in Hz

The formula originates from *Inductance Calculations* by F W Grover, Van Nostrand, Princeton, NJ, 1947, Reprinted by Dover Publications, NY, 1962. Two more formulas are given by Brian Wadell for calculating T(x) which are "accurate to a few percent over the range 0.0 ≤ x ≤ 100.0".

Where

r is the radius of the conductor in cm

μ is the absolute magnetic permeability of the conductor

The absolute magnetic permeability (μ) = μ_{o} x μ_{r}

μ_{o} = 4π x 10^{-7} H/m

The values for μ_{r} and σ are from *Transmission Line Design Handbook* by Brian C Wadell, Artech House 1991 Table 9.3.2
page 446.

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