Torque Torque Torque, moment, or moment of force is the rotational equivalent of linear force. The concept originated with the studies of Archimedes on the usage of levers. Just as a linear force is a push or a pull, a torque can be thought of as a twist to an object. The symbol for torque is typically formula_1, the lowercase Greek letter "tau". When being referred to as moment of force, it is commonly denoted by "M". In three dimensions, the torque is a pseudovector; for point particles, it is given by the cross product of the position vector (distance vector)
Mu (letter) monotonic orthography, the ancient version is written with an acute accent instead of a circumflex: . 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 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