Mu

Mu (μ) is a symbol commonly used in science and engineering to represent different concepts depending on the context. In physics and engineering, it often denotes the coefficient of friction or the mean (average) value of a quantity. In chemistry and biology, μ can signify a micro (one-millionth) unit, such as a microampere for current or micrometers for length. Overall, Mu serves as a versatile symbol to simplify notation and communicate specific measurements or properties efficiently across scientific fields.