The term "e₃" typically refers to a specific type of mathematical notation or concept, often used in the context of vector spaces or algebra. In mathematics, "e" can represent the base of natural logarithms, approximately equal to 2.71828, while the subscript "3" may indicate a three-dimensional space or a specific element in a sequence. In other contexts, "e₃" could also refer to the E3 Expo, a major video game trade event where developers showcase upcoming games and technology. This event is significant for the gaming industry, attracting attention from both consumers and media worldwide.