Hi, I'm trying to write out a set of equations I was using in an excel worksheet and am unsure how to represent a modulo function. For example, is there a proper way to write out the following excel formula in mathematical terms? =MOD(280.4+X*(36000.7 + X*0.0003032),360) *Where X is a cell containing the variable Sorry if my question is a bit confusing. I am unsure of how to write this out because typically I wouldn't expect to write a comma in a mathematical equation. Maybe this is a bad assumption. Thanks for any help.