⅀ Double-struck n-ary summation

⅀ is the double-struck n-ary summation, Unicode U+2140, from the letterlike and units symbols. Copy and paste it, or type it with its HTML or CSS code.

⅀

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About it

Name: Double-struck n-ary summation
Group: Letterlike and units
Unicode: U+2140
HTML: ⅀ or ⅀
CSS: content: "\2140"
JavaScript: \u2140

It is plain text, so it pastes into any app, chat, document or social post, and shows in whatever font is around it.

More letterlike and units symbols

℺Rotated capital q ℻Facsimile sign ℼDouble-struck small pi ℽDouble-struck small gamma ℾDouble-struck capital gamma ℿDouble-struck capital pi ⅁Turned sans-serif capital g ⅂Turned sans-serif capital l ⅃Reversed sans-serif capital l ⅄Turned sans-serif capital y ⅅDouble-struck italic capital d ⅆDouble-struck italic small d