December 15, 2006 12:12pm CST
What is the meaning of the word sigma?
15 Dec 06
Sigma (upper case S, lower case s, lowercase in word-final position ?) is the 18th letter of the Greek alphabet. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not upper case, the final form (?) is used.