gamma

gamma
pronunciation
antique [ g ]
modern [ ɣ, j ]
Equivalents
Latin G
Cyrillic Г
Hebrew ג
Arabic ج
Phoenician ?
transcription
From the ancient world G
From the modern g (see  naming convention )
Coding
Capitals
Unicode number U + 0393
Unicode name GREEK CAPITAL LETTER GAMMA
HTML & # 915;
HTML entity Γ
Minuscule
Unicode number U + 03B3
Unicode name GREEK SMALL LETTER GAMMA
HTML & # 947;
HTML entity γ

The Gamma ( Greek neuter γάμμα , Majuskel Γ, minuscule γ) is the third letter of the Greek alphabet and has after the Milesian system the numerical value of 3.

use

• In mathematics:
• γ denotes the Euler-Mascheroni constant .
• The Γ-function describes a function that can be understood as an extension of the factorial function to the complex number level. The following relationship exists for all natural numbers :${\ displaystyle n \ in \ mathbb {N}}$${\ displaystyle \ Gamma (n + 1) = n!}$
• In differential geometry , Γ denotes the Christoffel symbols .
• In probability theory, the gamma distribution describes a distribution function.
• In statistics, gamma (symbol:) is a measure of ordinal association that, like , or (tau a, tau b, tau c) is based on the couple concept.${\ displaystyle \ gamma}$${\ displaystyle \ tau _ {a}}$${\ displaystyle \ tau _ {b}}$${\ displaystyle \ tau _ {c}}$
• In computer science:
• When displaying images using electronic devices or in image processing, an abbreviation for gamma correction . It is a matter of adapting or correcting the gradient of the grayscale values ​​(i.e. the middle values) between 100% black and 100% white. Or also: Correction and adaptation of the course of the mean color brightness, color values ​​or gradations (to the visual sensitivity of the eye).
• In communications engineering, Γ denotes the SNR gap , which models the difference between theoretical and achievable channel capacity.
• The symbol for the ribbon alphabet of a Turing machine