Mu (letter)

Letters that derive from mu include the Roman M and the Cyrillic М, though the lowercase resembles a small Latin U (u).

[4][5] The lowercase letter mu (μ) is used as a special symbol in many academic fields.

Uppercase mu is not used, because it appears identical to Latin M. "μ" is used as a unit prefix denoting a factor of 10−6 (one millionth), in this context, the symbol's name is "micro".

"μ" is conventionally used to denote certain things; however, any Greek letter or other symbol may be used freely as a variable name.

In classical physics and engineering: In particle physics: In thermodynamics: In evolutionary algorithms: In type theory: In chemistry: In biology: In pharmacology: In orbital mechanics: The Olympus Corporation manufactures a series of digital cameras called Olympus μ [mju:][17] (known as Olympus Stylus in North America).