From Wikipedia, the free encyclopedia.
Gamma (Γ γ) is the 3rd letter of the Greek alphabet and has a numeric value of 3.
It gives its name to several things:
- Gamma characteristic power law, and gamma correction in television and computer display systems. gamma refers to the exponent in a power-law relationship between video or pixel values and the displayed brightness.
- In the game of Tetris, gamma is another name for the J tetromino.
- The gamma function (related to factorials) in mathematics.
- The Euler-Mascheroni constant in mathematics.
- The photon, seen (pun intended) as an elementary particle in physics.
- Gamma rays in physics and astronomy.
- The gamma factor in relativity theory and astronomy.
- The adiabatic index of a gas in physics.