Σ

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Greek uc sigma.svg
Unicode name GREEK CAPITAL LETTER SIGMA
Codepoint U+03A3
Ρ ← Greek and Coptic → Τ
See also: [U+2211 N-ARY SUMMATION], Ʃ [U+01A9 LATIN CAPITAL LETTER ESH], and [U+2D49 TIFINAGH LETTER YI]

Translingual[edit]

Symbol[edit]

Σ

  1. (mathematics) Σ. Sum over a set of like terms:
    \sum_{n=1}^2 n^2 = 1 + 4 = 5

Usage notes[edit]

(mathematics): Though there exists a distinct symbol () for the purpose of the mathematical summation, the upper case sigma here is often used for convenience.

See also[edit]


Greek[edit]

Letter[edit]

Σ (S) (uppercase, lowercase σ)

  1. The upper case letter sigma (σίγμα), the 18th letter of the modern Greek alphabet.

See also[edit]

see: Appendix:Greek alphabet

Numeral[edit]

Σ (S)

  1. The number 200 in Greek numerals.

  1. The number 200,000 in Greek numerals.