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Sigma
Visual form
Name
Greek small letter Sigma
Upper case
Σ (U+03A3)
Position in Greek alphabet
18th letter (7th letter from the end)
Encodings
Unicode | U+03C3 (decimal: 963) HTML | σ | σ | σ Wolfram Language | \[Sigma] | \:03c3
Standard blocks
Unicode | Greek and Coptic (880 through 1023) (144 characters) ISO 8859 | ISO 8859-7 (Latin/Greek) (character 243)
Unicode classification
letter 〉 lowercase
Computer keyboards containing "σ"
Greek keyboard | Greek (220) keyboard | Greek (319) keyboard | Greek Polytonic keyboard