File:Sigma_uc_lc.svg · Wikimedia Commons · See Wikimedia Commons
Sigma (Σ) is the eighteenth letter of the Greek alphabet with two lowercase forms: σ is used in the middle of words, while ς is used at the end of words. This distinction between middle and final forms is unique to sigma among Greek letters and appears in words like "Odysseus," where the two middle sigmas differ visually from the final sigma.
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Wikidata facts
- Part of
- Greek alphabet
- Followed by
- Τ
- Follows
- Ρ
- Image
- Sigma uc lc.svg
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- Commons category
- Sigma (letter)
- Unicode character
- ς
- replaces
- lunate sigma
- Commons gallery
- Σ
- different from
- esh
- maintained by WikiProject
- WikiProject Mathematics
- language of work or name
- Greek
Sources (3)
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Article · Polski
Sigma (stgr. σῖγμα, nwgr. σίγμα, pisana Σ, σ lub ς) – osiemnasta litera współczesnego alfabetu greckiego, przy czym „Σ” to majuskuła, „σ’ to minuskuła stosowana na początku lub w środku wyrazu, „ς” zaś na jego końcu. W dawnym greckim systemie liczbowym używano jej również do oznaczania liczby 200. Zwłaszcza w starych tekstach występują alternatywne formy „Ϲ, ϲ, Ͻ, ͻ”.
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