Sigma Symbol

Sigma is one of the letters of the Greek alphabet. In mathematics, sigma symbol is used as an operator for summation.

📋 Sigma Text Symbols to Copy and Paste

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Σ
σ

⌨️ Sigma Symbol Alt Codes

Press the key or keys on the numpad while holding ALT.

ALT CodeSymbol
ALT + 228Σ
ALT + 229σ