Σ

Такође погледајте: σ, ς, , , Ʃ, σ., и σ'

Σ U+03A3, Σ
GREEK CAPITAL LETTER SIGMA
[unassigned: U+03A2]
Ρ
[U+03A1]
Грчки и Коптски Τ
[U+03A4]

Translingual[уреди]

Symbol[уреди]

Σ

  1. (mathematics) Σ. Sum over a set of like terms:
  2. (topology) suspension or reduced suspension
  3. (mathematics) A class (in the arithmetical hierarchy) of formulae whose outermost unbounded quantifiers are existential quantifiers

====Usage notes

==

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

Coordinate terms[уреди]

  • (classification of formulae): Π, Δ

===See also

=


Грчки[уреди]

Слово[уреди]

Σ (S) (uppercase, lowercase σ)

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

Numeral[уреди]

Σ (S)

  1. The number 200 in Greek numerals.

  1. The number 200,000 in Greek numerals.

===See also

=

see: Appendix:Greek alphabet