For other uses, see Nu.

Nu (upper case Ν, lower case ν) is the 13th letter of the Greek alphabet. In the system of Greek numerals it has a value of 50. Its Latin Alphabet equivalent is N.

The word nu is written in traditional Greek polytonic orthography. In Modern Greek it is sometimes written (ni). Either version is pronounced , like the English word knee.

The lower-case letter ν is used as a symbol for:

• The frequency of a wave in physics and other fields.
• _.CE.BD_.3D_.CE.BC_.2F_.CF.81 in fluid mechanics
• Any of three kinds of neutrino in particle physics.
• One of the Greeks in mathematical finance, known as "vega".

Nu also played a role in anime for the νGundam.

See also

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• Nu ephelkustikon

Greek letters

Ν | Ny | Νι | Ν | Ny | Nu (lettre grecque) | Ν | Nu (lettera) | נו (אות) | Nu (letter) | Ny | Ν | Ni (litera) | Ν | Ny | Ν