N-Ary Summation
The n-ary summation (∑) sits at code point U+2211 in Unicode. It belongs to the math family and pastes as plain text, so it keeps working across documents, messages and web pages. Below you can copy it in one click and grab the exact HTML, CSS and JavaScript codes you need to reproduce it anywhere.
How to type the n-ary summation symbol
- Copy and paste: click the ∑ at the top of this page, then paste with Ctrl+V (Windows) or Cmd+V (Mac). This is the fastest route on any device.
- HTML: write
∑or the named entity∑in your markup. - CSS: use
content: "\2211"in a::beforeor::afterrule. - JavaScript: the escape
\u2211produces this character in a string.
Frequently asked questions
How do I copy the n-ary summation symbol?
Click the ∑ above or the copy button and it is placed on your clipboard. Paste it anywhere with Ctrl+V or Cmd+V. It is a real text character, so it works in documents, chats and code.
What is the Unicode code point for n-ary summation?
The n-ary summation has the Unicode code point U+2211. In HTML you can write it as ∑ or ∑, or with the named entity ∑.
Does the n-ary summation symbol work everywhere?
In almost every modern app and font, yes. If a font does not include this glyph you may see a placeholder box, but the underlying character U+2211 is still correct and will render in a font that supports it.
Related symbols
Browse the full math symbols hub, or return to the searchable symbol grid.