e2x

e2x is a label used in several unrelated domains, and there is no universally accepted definition for the term on its own. Its meaning depends on context, and in most cases it represents one of two broad possibilities: a mathematical expression involving the base e, or a short-hand identifier used in technology settings as an acronym, model name, or code.

In mathematics and science, e2x is sometimes encountered as a compact, informal way to refer to the exponential function evaluated at 2x, that is e^(2x) or exp(2x). The proper mathematical notation uses explicit parentheses or the exp function. Because plain-text notation can omit parentheses, misinterpretation is possible, so precise notation should be used in formal writing.

In technology, business, and software development, e2x has been adopted as an acronym, project label, or product name by different entities. As such, it does not designate a single standard, protocol, or organization. When encountered in documentation or code, the intended meaning should be inferred from surrounding context, documentation, or contacting the relevant entity.

See also: exponential function, exp notation, natural base e.