∑ N-ary summation
∑ is the n-ary summation, Unicode U+2211, from the maths symbols. Copy and paste it, or type it with its HTML or CSS code.
∑
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About it
- Name: N-ary summation
- Group: Maths
- Unicode: U+2211
- HTML:
∑or∑ - CSS:
content: "\2211" - JavaScript:
\u2211
It is plain text, so it pastes into any app, chat, document or social post, and shows in whatever font is around it.