In physics, we often meet some notations such as 
and etc. It turned out that these notations actually are the Greek alphabets. There are 24 number alphabets in the Greek including: Alpha, Beta, Gamma, Delta, Epsilon, Zeta, Eta, Theta, IOTA, Kappa, Lambda, Mu, Nu, Xi, Omicron, Phi, Rho, Sigma, Tau, Upsilon, Pi, Chi, Psi and Omega. The Greek alphabet has been used to write the Greek language since the end of the 9th BC. This is an oldest written alphabet that still used today. The letters are also used for representing Greek figures (numbers), since the 2nd BC.
and etc. It turned out that these notations actually are the Greek alphabets. There are 24 number alphabets in the Greek including: Alpha, Beta, Gamma, Delta, Epsilon, Zeta, Eta, Theta, IOTA, Kappa, Lambda, Mu, Nu, Xi, Omicron, Phi, Rho, Sigma, Tau, Upsilon, Pi, Chi, Psi and Omega. The Greek alphabet has been used to write the Greek language since the end of the 9th BC. This is an oldest written alphabet that still used today. The letters are also used for representing Greek figures (numbers), since the 2nd BC.It's important to know the spelling of each notation when one will write a physics formula in La-TeX program. Here I present the spelling for each notation of the whole Greek alphabets.
Hopefully useful.
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