∑
U+2211 N-ARY SUMMATION
Mathematical Operators · Math symbol
| Name | N-ARY SUMMATION |
|---|---|
| Code point | U+2211 |
| Decimal | 8721 |
| Block | Mathematical Operators |
| Category | Math symbol (Sm) |
| UTF-8 | E2 88 91 |
| UTF-16 | 2211 |
| UTF-32 | 00002211 |
| HTML | ∑ ∑ ∑ |
| CSS | \2211 |
| JavaScript | \u2211 |
| Python | \u2211 |
| URL-encoded | %E2%88%91 |
Frequently asked questions
What is the character U+2211?
U+2211 ∑ is officially named N-ARY SUMMATION. It belongs to the Mathematical Operators block and the category Math symbol.
How do I type ∑?
Windows (Word, WordPad): type 2211, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 2211, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 2211. Or simply copy it from this page.
How do I write ∑ in HTML?
As a numeric character reference ∑ (decimal) or ∑ (hexadecimal). In UTF-8 documents you can also insert the character directly. There is also the named entity ∑.
How is ∑ encoded in UTF-8?
In UTF-8 the character takes 3 bytes: E2 88 91. In UTF-16: 2211.