Diameter of an American Wire Gauge - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Software Libraries (/forum-10.html) +--- Forum: HP Prime Software Library (/forum-15.html) +--- Thread: Diameter of an American Wire Gauge (/thread-12016.html) Diameter of an American Wire Gauge - Eddie W. Shore - 12-24-2018 01:58 AM Blog post: https://edspi31415.blogspot.com/2018/12/casio-fx-5800p-and-hp-prime-american.html Introduction The following formula calculates the diameter of an American Wire Gauge: d = 460 / (92^((3 + g)/39)) (in mils) where g is the wire number (integer). Define g as: Wire number: 0000000, g = -6 Wire number: 000000, g = -5 Wire number: 00000, g = -4 Wire number: 0000, g = -3 Wire number: 000, g = -2 Wire number: 00, g = -1 Wire number: 0, g = 0 Any other wire number, enter g as the wire number (1, 2, 3, 4, etc.) Conversion factor: 1000 mils = 1 in HP Prime Program Function AWB Given the wire number, the function AWB returns the diameter of the wire in inches. Code: ``` EXPORT AWG(g) BEGIN // American Wire Gauge Diameter Function // 2018-12-23 EWS // in inches RETURN (460/(92^((3+g)/39)))/1000; END;``` Examples: g = -2 (000); d ≈ 0.4096 in g = 3; d ≈ 0.2294 in g = 6; d ≈ 0.1620 in Sources: Ball, John A. Algorithms For RPN Calculators John Wiley & Sons: New York 1978. ISBN 0-471-03070-8 Glover, Thomas J. Pocket Ref 4th Edition Sequoia Publishing, Inc.: Littleton, CO 2012. ISBN 978-1-885071-62-0