Old Hollywood: Lewis sensationally revealed in her 1994 memoir that she was conceived in 1935 when Loretta Young, 22, and the married Clark Gable, 34, were shooting The Call of the Wild. Secret: Loretta Young is pictured with Judy Lewis in 1944, who did not know for years who her father was.
The sigma symbol provides the character used to denote the sum of an equation in mathematics. You can create a sigma sign by accessing the Character Palette, using a keyboard shortcut or by using the Special Characters menu in your current application.
Sigma (upper-case Ï, lower-case Ï, lower-case in word-final position Ï; Greek: ÏÎ¯Î³Î¼Î±) is the eighteenth 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 (when the word is not all caps), the final form (Ï) is used, e.g. á½Î´ÏÏÏÎµÏÏ (Odysseus); note the two sigmas in the center of the name, and the word-final sigma at the end. 1  1 History.  1.1 Etymology.