U+2140 DOUBLE-STRUCK N-ARY SUMMATION

Double-struck blackboard bold sigma, a summation symbol used in mathematical notation.

Codepoint: U+2140
Name: DOUBLE-STRUCK N-ARY SUMMATION
Block: Letterlike Symbols
Script: Common
Category: Math Symbol (Sm)
Unicode version: 3.2
Plane: BMP
HTML: ⅀ ⅀
CSS: \2140
UTF-8: E2 85 80
UTF-16: 2140
UTF-32: 00002140

Related characters

Letterlike Symbols

80 characters in the Letterlike Symbols Unicode block.