Greek Capital Letter Epsilon

Greek Capital Letter Epsilon at U+0395 is the uppercase form of epsilon, a Greek letter used for the vowel sound written in Modern Greek much like short “e” in words such as “met.” It is part of the Greek and Coptic block and appears in ordinary Greek text, where it begins names, titles, abbreviations, and words such as Ελλάδα for Greece. In mathematics and science, capital epsilon is less universal than lowercase epsilon, but it still appears in established notation. It can denote electromotive force in physics and electrical engineering, strain energy or expectation-like quantities in some texts, and named sets or constants where authors choose Greek capitals for compact symbolic labels. The letter is also seen in fraternity and sorority names, academic organizations, and scientific naming systems that use Greek-letter sequences, as in chapter names or variant labels. In technical typography it can be confused with the Latin capital E because many fonts draw them almost identically, so Greek text processing and search treat it as a distinct character even when it looks the same.