Character U+221A
Char U+221A
Char
√
Unicode
U+221A
Conversion Results
dec: 8730
hex: 0x221A
oct: 21032
bin: 10001000011010
Appears in charsets
Canonical
/char/u221aUnicode & UTF
Unicode 映射与其在常见编码（UTF‑8/16/32）中的表示，便于复制粘贴与调试。
| Unicode | U+221A | |
| Unicode dec | 8730 | |
| UTF-8 (hex) | E2 88 9A | |
| UTF-8 (bin) | 11100010 10001000 10011010 | |
| UTF-16 | 221A | |
| UTF-32 | 0000221A |
HTML & URL
Web 场景常用的 HTML 实体、URL 转义与 QP 编码，方便在页面/邮件/日志中使用。
| HTML Number | √ | |
| HTML Hex | √ | |
| URL Escape | %E2%88%9A | |
| Quoted-printable | =E2=88=9A |
Source Code Escapes
C, C++, and Java
"\u221A"
CSS Code
\221A
JavaScript
"\u221A"
Perl
\x{221A}
Python 2
u"\u221A"
Python 3
"\u221A"
Ruby
\u{221A}