The lowercase Sigma sign represents more concepts and values than its uppercase counterpart.Īs mentioned earlier, it symbolizes the sigma receptor in biology. In terms of both computer science and linguistics, the lowercase Sigma letter represents the set of symbols that form an alphabet. In economics, the symbol represents the balance between invoice classes and overall amount of debts and demands. Meanwhile, the symbol is also used to denote self-energy in the field of condensed matter physics. For one, it denotes a class of baryons, a type of composite subatomic particles, in particle physics.Īlso in particle physics, as well as nuclear physics, the capital Sigma represents macroscopic cross sections. The symbol has various uses in physics as well. In statistics and probability theory, the symbol denotes the covariance matrix of a set of random variables. Aside from that, it also denotes the busy beaver function in computer science.
Uses for the Uppercase Sigma SymbolĪs mentioned above, the most popular use for the uppercase Sigma sign is for representing summation. Meanwhile, the lowercase Sigma sign is known for symbolizing the sigma receptor in biology. The uppercase Sigma symbol is popular for being the symbol for the summation operator in math. Greek Sigma Letter and Its Various Meanings and Usesīoth the uppercase and lowercase Sigma symbols are widely used in different fields and industries, particularly in math and science. Furthermore, the Coptic and Cyrillic letters C were derived from the lunate sigma.
The modified version of Sigma became the basis for the Latin S. The simplified three-stroke sign, which omits the lowermost stroke, was widely adopted in Oscan, Etruscan, and Latin epigraphy. The Sigma letter has been adopted in the Old Italic alphabets. It is also believed that the name “sigma” may have actually been invented by the Greeks to mean hissing. The historian Herodotus reported that the Dorians gave the name “san” to the letter known to Ionians as “sigma”.
Some believed that Sigma’s original name may have been “san”. Essentially, the Sigma takes the appearance of Shin, only rotated clockwise. The alphabetic position and appearance of the Sigma sign are thought to have been derived from the Phoenician letter shin, which resembles a W. This variation, now known as the lunate sigma, became the standard form of capital Sigma until the Middle Ages. Notice the difference between the two small Sigmas in the middle and the one at the end.įurthermore, the capital Sigma’s epigraphic form has been simplified into a C-shaped symbol during the Hellenistic period. A great example would be the name Odysseus (Ὀδυσσεύς).
0 kommentar(er)
