π is the Unicode character TETRAGRAM FOR PENETRATION, code point U+1D313 (decimal 119571) in the Tai Xuan Jing Symbols block, added in Unicode 4.0. In HTML write 𝌓, and in UTF-8 it is the 4 bytes F0 9D 8C 93.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1D313 |
| Decimal | 119571 |
| UTF-8 bytes | F0 9D 8C 93 |
| UTF-16 (big-endian) | D834 DF13 |
| UTF-32 | 0001D313 |
| HTML decimal | 𝌓 |
| HTML hex | 𝌓 |
| CSS | \1D313 |
| JavaScript | \u{1D313} or \uD834\uDF13 |
| JSON | \uD834\uDF13 |
| Python | \U0001D313 |
| Python by name | \N{TETRAGRAM FOR PENETRATION} |
| Java, C# | \uD834\uDF13 |
| Rust, Swift | \u{1D313} |
| Go, C, C++ | \U0001D313 |
| URL (percent-encoded) | %F0%9D%8C%93 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | TETRAGRAM FOR PENETRATION |
| Code point | U+1D313 (decimal 119571) |
| Block | Tai Xuan Jing Symbols (U+1D300βU+1D35F) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 4.0 |
Nearby in Tai Xuan Jing Symbols
- π U+1D30B Tetragram For Contrariety
- π U+1D30C Tetragram For Ascent
- π U+1D30D Tetragram For Opposition
- π U+1D30E Tetragram For Branching Out
- π U+1D30F Tetragram For Defectiveness Or Distortion
- π U+1D310 Tetragram For Divergence
- π U+1D311 Tetragram For Youthfulness
- π U+1D312 Tetragram For Increase
- π U+1D314 Tetragram For Reach
- π U+1D315 Tetragram For Contact
- π U+1D316 Tetragram For Holding Back
- π U+1D317 Tetragram For Waiting
- π U+1D318 Tetragram For Following
- π U+1D319 Tetragram For Advance
- π U+1D31A Tetragram For Release
- π U+1D31B Tetragram For Resistance
All 87 characters: Tai Xuan Jing Symbols.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 𝌓 (decimal) or 𝌓 (hex).
- What is the UTF-8 encoding of U+1D313?
- F0 9D 8C 93 (hex), 4 bytes. In a URL it is %F0%9D%8C%93.
- How do I write U+1D313 in JavaScript or Python?
- JavaScript: \u{1D313} or \uD834\uDF13. Python: \U0001D313.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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