Psi (letter) (generalized) positional states of a qubit in a quantum computer. Psi is also used as the symbol for the polygamma function, defined by where formula_3 is the gamma function. The letters Ψ or ψ can also be a symbol for: These characters are used only as mathematical symbols. Stylized Greek text should be encoded using the normal Greek letters, with markup and formatting to indicate text style. Psi (letter) Psi (; uppercase ', lowercase '; "psi" ) is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter
History of the Greek alphabet of the same name, he would have lived at the time of Oedipus. The third tripod bears the inscription again in hexameter verse: . (""Laodamas, while he reigned, dedicated this cauldron to Apollo, the sure of aim, as a lovely offering""). Hyginus recounts the following legend about the introduction of Phoenician letters to Greece: Some ancient Greek scholars argued that the Greek alphabet should not be attributed to the Phoenician alphabet. Diodorus Siculus in his Historical Library, Book 5, suggests that the Phoenicians merely changed the form and shape of earlier letters: In his book On the malice of Herodotus,