Mr. Mayle is recognized as the leading expert on fixed income calculation standards and their implementation in software. He authored “Standard Securities Calculation Methods: Fixed Income Formulas for Price, Yield, and Accrued Interest”, Volume 1 and “Standard Securities Calculation Methods: Fixed Income Securities Formulas for Analytic Measures”, Volume 2 both of which were published by the Securities Industry and Financial Markets Association (SIFMA). The two volumes define the industry standards for the math of fixed income trading and settlement.