mu
Mu is the twelfth letter of the Greek alphabet, written as uppercase Μ and lowercase μ. It is used as a symbol in a wide range of scientific, mathematical, and philosophical contexts. The name and form descend from Phoenician mem and have been adopted into Greek and many subsequent alphabets.
The lowercase form μ is commonly used in science and mathematics to denote various quantities. In the
In mathematics and physics, μ is widely used to denote population mean in statistics, chemical potential in
In particle physics, μ denotes the muon, a heavy lepton similar to the electron, as well as its
In Zen Buddhism, Mu is a koan response meaning "no" or "not have," used to indicate a