Nu (letter)

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[[Image:Greek alphabet {{{letter|alpha-omega}}}.png| 200px|center]]
Greek alphabet
Α α Alpha	Β β Beta
Γ γ Gamma	Δ δ Delta
Ε ε Epsilon	Ζ ζ Zeta
Η η Eta	Θ θ Theta
Ι ι Iota	Κ κ Kappa
Λ λ Lambda	Μ μ Mu
Ν ν Nu	Ξ ξ Xi
Ο ο Omicron	Π π Pi
Ρ ρ Rho	Σ σ ς Sigma
Τ τ Tau	Υ υ Upsilon
Φ φ Phi	Χ χ Chi
Ψ ψ Psi	Ω ω Omega
obsolete letters
Image:Greek alphabet digamma2.png Digamma	Image:Greek alphabet san.png San
Image:Greek alphabet qoppa.png Qoppa	Image:Greek alphabet sampi.png Sampi
Image:Greek alphabet stigma.png Stigma	Image:Greek alphabet sho.png Sho

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 Template:Polytonic in traditional Greek polytonic orthography. In Modern Greek it is sometimes written Template:Polytonic (ni). Either version is pronounced Template:IPA.

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

• The frequency of a wave in physics and other fields.
• Any of three kinds of neutrino in particle physics.
• One of the Greeks in mathematical finance, known as "vega".

See also

• Nu ephelkustikonals:Ν

de:Ny el:Νι es:Ν fr:Nu (lettre grecque) ko:Ν it:Nu (lettera) he:נו (אות) nl:Nu (letter) nds:Ny ja:Ν pl:Ni (litera) pt:Ν sv:Ny zh:Ν