Σ U+03A3 GREEK CAPITAL LETTER SIGMA

Codepoint	U+03A3
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Block	Greek and Coptic
Sub-Block	Letters
Category	Lu / Letter, uppercase
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Case Variants	σ U+03C3 GREEK SMALL LETTER SIGMA
Related	Ʃ U+01A9 LATIN CAPITAL LETTER ESH ∑ U+2211 N-ARY SUMMATION
How to type "Σ" in Windows?	hold `alt` type `+` type `3A3` release `alt`
How to type "Σ" in Linux?	hold `ctrl`+`shift` type `U` `3A3` release `ctrl`+`shift`