View details and encodings for Unicode character U+2140 Double-Struck N-Ary Summation, located in the Letterlike Symbols block and Math Symbol category. This character was released in 2002 under Unicode version 3.2.
⅀⅀U+2140;8512\002140\u2140\x{2140}\u{2140}u'\u2140'E28580214000002140| Image | Browser | Unicode | Name |
|---|---|---|---|
![]() | ⅀ | U+2140 | Double-Struck N-Ary Summation |