100% CIRCLE PERIMETERCircumference (Irrational Ratio Called-Logically!) Equals Pi! (Energizes Representation In Math Equations) Two (Er) Radius Charles H. Montgomery, Jr. Outside of parentheses in EXPANSION: Circumference = Pi Two Radiusor C=2*Pi*R. The ! signals that (Irrational Ratio Called-Logically!) is Pi! "Called-Logically!" is a PUNNY way of saying "most Pies are CIRCLES." Er is Chinese Two. Hope the grave accent for Èr worked. I thought that (Energizes Representation In Math Equations) was very important. For centuries, primary school children have learned C=2*Pi*R, so this inclusion might help whoever reads this APRONYM when they study advanced math.