N-Ary Summation
Unicode
U+2211
Decimal
8721
HTML entity
∑
HTML (numeric)
∑ · ∑
Alt code (Windows)
Alt + 8721
Category
Math symbols
Related characters
FAQ — N-Ary Summation
What is the Unicode code of ∑ (N-Ary Summation)?
The N-Ary Summation character has the Unicode codepoint U+2211 (decimal 8721). Its HTML form is ∑, or ∑ (decimal) / ∑ (hex).
How do I type ∑ with an alt code?
On Windows, hold the Alt key and type Alt + 8721 on the numeric keypad. Or copy the character directly with the button above.
Which category does ∑ belong to?
N-Ary Summation is in the "Math symbols" category.