summation Letters
⅀ ∑ ⎲ ⎳ ⨋
| Summation Symbol | Symbol Name | Dec Code | Hex Code | Unicode |
|---|---|---|---|---|
| ⅀ | Double-Struck N-Ary Summation | ⅀ | ⅀ | U+2140 |
| ∑ | N-Ary Summation | ∑ | ∑ | U+2211 |
| ⎲ | Summation Top | ⎲ | ⎲ | U+23B2 |
| ⎳ | Summation Bottom | ⎳ | ⎳ | U+23B3 |
| ⨋ | Summation With Integral | ⨋ | ⨋ | U+2A0B |