N-ARY SUMMATION

Official Unicode character in the Mathematical Operators block. Use the copy buttons or follow the platform-specific instructions below to type this character.

How to Type the N-ARY SUMMATION (∑)

Windows Instructions

Hold Alt + type 8721 on NumPad

Num Lock must be turned on. Numbers must be typed on the physical numeric keypad on the right.

macOS (Apple) Instructions

Press Option + W

Standard macOS mnemonic Option key shortcut compatible with US and International Mac keyboards.

Technical Specifications & Encoding Details

Unicode Codepoint	U+2211
Decimal Value	8721
Hexadecimal Value	0x2211
UTF-8 Bytes	0xE2 0x88 0x91
HTML Named Entity	∑
HTML Decimal Entity	∑
HTML Hex Entity	∑
General Category	Math Symbol (Sm)
Unicode Block	Mathematical Operators
Script	Common