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ETA is also used metaphorically in situations where nothing actually moves physically, as in describing the time estimated for a certain task to complete (e.g. work undertaken by an individual; a computation undertaken by a computer program; or a process undertaken by an organization).
In the ancient Attic number system (Herodianic or acrophonic numbers), the number 100 was represented by "Η", because it was the initial of ΗΕΚΑΤΟΝ, the ancient spelling of ἑκατόν = "one hundred". In the later system of (Classical) Greek numerals eta represents 8. Eta was derived from the Phoenician letter heth.
EAI—Enterprise Application Integration; EAP—Extensible Authentication Protocol; EAS—Exchange ActiveSync; EBCDIC—Extended Binary Coded Decimal Interchange Code; EBML—Extensible Binary Meta Language
The ETA will be mandatory for all “non-visa” overseas visitors to the UK, with the exception of Irish nationals, who are allowed free movement under the Common Travel Agreement.
Visitors from non-visa countries will need the ETA to stay for up to 90 days in Israel having previously been able to visit the country without it. Entry will continue to be determined by a border ...
A A&TWF – Acquisition and technology work force a – Army AA – Assembly area AA – Anti-aircraft AA – Aegis ashore AAA – Anti-aircraft artillery "Triple A" AAAV – Advanced Amphibious Assault Vehicle AAC – Army Air Corps AAD – Armored amphibious dozer AADC – Area air defense commander AAE – Army acquisition executive AAG – Anti-aircraft gun AAK – Appliqué armor kit (US ...
Euler's totient function in number theory; the argument of a complex number in mathematics; the value of a plane angle in physics and mathematics; the angle to the z axis in spherical coordinates (mathematics) epoch or phase difference between two waves or vectors; the angle to the x axis in the xy-plane in spherical or cylindrical coordinates ...
The ETA, the Greek army's tier-one special-operations unit, earned top marks from NATO's Special Operations Forces Headquarters in December.