∑
U+2211
| 名称 | ∑ N 元求和 |
| 编码 | U+2211 |
| HTML代码 | ∑ ∑ |
| CSS代码 | \2211 |
| 实体 | ∑ |
| 分区 | 数学运算符 |
| 版本 | 1.1 (1993) |
| Age | 1.1 |
| 镜像 | 是 |
| Bidi Paired Bracket Type | None |
| Composition Exclusion | No |
| Case Folding | 2211 |
| Simple Case Folding | 2211 |
编码
| 编码 | hex | dec(bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | E2 88 91 | 226 136 145 | 14846097 | 11100010 10001000 10010001 |
| UTF-16BE | 22 11 | 34 17 | 8721 | 00100010 00010001 |
| UTF-16LE | 11 22 | 17 34 | 4386 | 00010001 00100010 |
| UTF-32BE | 00 00 22 11 | 0 0 34 17 | 8721 | 00000000 00000000 00100010 00010001 |
| UTF-32LE | 11 22 00 00 | 17 34 0 0 | 287440896 | 00010001 00100010 00000000 00000000 |