Alpha
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Alpha may refer to:
- The Greek letter alpha
- Alpha (letter), a letter in the Greek alphabet. α may be used as the symbol for:
- * Angle of attack in aerodynamics
- * Common-base current gain of a transistor in electronics
- * In physics
- ** Fine-structure constant, a fundamental physical constant
- ** Alpha particle, form of particle radiation
- ** H-alpha, or H-α, an emission line created by hydrogen atoms
- * Alpha carbon organic chemistry to indicate the position of a group in a molecule
- * In Bayer designation, the typically brightest star in a constellation
- * The significance level in statistical hypothesis testing
- * Opacity in computer graphics
- * The alpha coefficient in Evaluating Financial Returns
- Alpha (band), a British electronic music group.
- Alpha (computer), a fictional computer in Mike Walker's radio play Alpha
- , the first Magic: The Gathering cards set
- Alpha 5/Alpha 6/Alpha 7, nicknames of the characters in the Power Rangers television programs
- Alpha TV, a Greek terrestrial channel
- ARC Trooper A-17, nicknamed "Alpha", a character from various Star Wars comics
- The highest social class in Aldous Huxley's novel Brave New World.
- The primary setting for the fictional television series
- The Robot on the Original Mighty Morphin Power Rangers
- Alpha the Ultimate Mutant, a character featured in Marvel Comics.
- Alpha (biology), "alpha male" and "alpha female", the highest ranking individuals in a community of social animals
- Alpha (Investment), a measuring of risk-adjusted performance
- Alpha (Machine learning), the degree to which a learning agent takes into account new information
- Alpha (Radio navigation), a Russian radio navigation system, similar to the former Omega Navigation System
- Alpha channel, a transparency information layer to supplement the three RGB color layers to make the RGBA color space.
- Alpha waves, recorded by electroencephalography
- Cronbach's alpha, a statistical measure of reliability.
- DEC Alpha, a microprocessor from Digital Equipment Corporation.
- Space Station Alpha, an alernative name for the Space Station Freedom
- A unofficial call sign for the International Space Station
- An early development stage in software engineering (e.g. an Alpha version)
- Alpha 2000, a light aircraft built in New Zealand
- Alpha Group, a dedicated counter-terrorism unit that belongs to OSNAZ
- Alpha class submarine, a Russian fast attack nuclear submarine
- Alpha course, an introductory course in Christianity
- Tropical Storm Alpha (2005)
- Alpha 5, from the Mighty Morphin Power Rangers series and movie.
- Alpha was the last boss in the video game: Megaman Battle Network 3
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