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Sine Wave HTML entity ∿
∿ is the HTML entity for Sine Wave ∿ (U+223F). Copy the decimal ∿ and hex ∿ codes plus CSS, JavaScript, Python and URL escapes.
- Entity
∿- Code point
- U+223F
- Unicode name
- SINE WAVE
- Block
- Mathematical Operators
- Category
- Math symbol (Sm)
- Since
- Unicode 1.1
- Defined in
- HTML5
Codes to copy
| HTML named | ∿Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal | ∿Works in HTML and XML. | |
| HTML hex | ∿Works in HTML and XML. | |
| CSS | content: "\223F";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u223F"Also valid in JSON. | |
| Python | "\u223f"Python 3 string literal. | |
| Python by name | "\N{SINE WAVE}"Readable alternative using the Unicode name. | |
| URL | %E2%88%BFPercent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 88 BF3 bytes. | |
| UTF-16 | 223F1 code unit, which is what JavaScript length counts. |
When to use it
∿ writes U+223F (Sine Wave), a maths symbol from the Unicode Mathematical Operators block, encoded since Unicode 1.1. For more than a symbol or two, MathML, supported in all major browsers since 2023, gives proper maths spacing and layout.
The name comes from the HTML5 list (much of it shared with MathML), so it works in every current browser but not in XML or XHTML served as XML, where the numeric reference is the safe choice.
More maths operators
≁Not Tilde∽Reversed Tilde≂Minus Tilde∼Tilde Operator≃Asymptotically Equal to∻Homothetic≄Not Asymptotically Equal to∺Geometric Proportion
All maths operators · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).