How to judge non odd and non even functions

How to judge non odd and non even functions

First of all, we need to see whether the domain is symmetric about the origin. If the domain is symmetric, we need to see whether it satisfies f (x) = f (- x) or F (x) = - f (- x). If it does not satisfy both of them, it is a non odd and non even function. If the domain is a point at the origin, it is both an odd function and an even function