Sigma (Greek letter): Difference between revisions
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'''Sigma''' is the 18th letter of the [[Greek alphabet]]. It is written as <math>\Sigma</math> (upper-case) and <math>\sigma</math> (lower-case), except at the end of a word, where the lower-case form is ς instead. | '''Sigma''' is the 18th letter of the [[Greek alphabet]]. It is written as <math>\Sigma</math> (upper-case) and <math>\sigma</math> (lower-case), except at the end of a word, where the lower-case form is ς instead. |
Revision as of 01:25, 2 February 2009
Sigma is the 18th letter of the Greek alphabet. It is written as (upper-case) and (lower-case), except at the end of a word, where the lower-case form is ς instead.