3M uses RA as the symbol for the coefficient of retroreflection.
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VSWR = voltage standing wave ratio = ratio of the maximum voltage to minimum on a line = VSWR = Emax / Emin = Imax / Imin Reflection Coefficient is the ratio of reflected voltage to incident voltage. = ZL - ZO / ZL + ZO
There is a symbol X in the Roman numeral system. The symbol X represents the number 10. For example XII = 12, XIV = 14, XVIII = 18, XIX = 19 and XXX = 30.
A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression. A coefficient must be a number or a symbol for a constant number. This includes pi and e as coefficients.2x=6(pi)x=44(x+2)=19
coefficient
2X 2 is the coefficient