HTML Entity for Asymptotically Equal To (≃)
What You'll Learn
How to display ASYMPTOTICALLY EQUAL TO (≃, U+2243) in HTML. This operator belongs to the Mathematical Operators block and is used when two expressions behave the same in the limit (for example as x tends to infinity). It is not the same character as U+2245 ≅ (approximately equal / congruent-style, often ≅) or U+2248 ≈ (almost equal).
In HTML you can write ≃ (named), ≃, ≃, or \2243 in CSS content. Prefer a math-friendly font stack so the tilde and bar read clearly at small sizes.
⚡ Quick Reference — Asymptotically Equal To
U+2243Mathematical Operators
≃Hexadecimal reference
≃Decimal reference
≃HTML5 named reference
\2243Use in CSS content
Name Value
──────────── ──────────
Unicode U+2243
Hex code ≃
HTML code ≃
Named entity ≃
CSS code \2243Complete HTML Example
This example shows U+2243 using hexadecimal, decimal, the sime named reference, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2243";
}
</style>
</head>
<body>
<p>Asymptotically Equal To using Hexa Decimal: ≃</p>
<p>Asymptotically Equal To using HTML Code: ≃</p>
<p>Asymptotically Equal To using HTML Entity: ≃</p>
<p id="point">Asymptotically Equal To using CSS Entity: </p>
</body>
</html>The named entity is written as ≃ so it displays as copyable ≃ in this listing without being parsed by the surrounding page.
🌐 Browser Support
The sime named reference and numeric forms for U+2243 are supported in all modern browsers. Use fonts with solid Mathematical Operators coverage for equations:
👀 Live Preview
Glyph scale and contrasts (notation is illustrative; use MathML or TeX for publication layout):
≃ in UTF-8 HTML.🧠 How It Works
Named entity
≃ (ampersand + sime + semicolon) is the HTML5 named character reference for U+2243.
Hexadecimal code
≃ uses the Unicode hexadecimal value 2243.
Decimal HTML code
≃ is the decimal equivalent (877110 = 224316).
CSS escape
\2243 in content emits U+2243 from a stylesheet.
Same visual result
All paths expose U+2243 — ASYMPTOTICALLY EQUAL TO. Prefer ≃ in hand-written markup when readability matters.
Use Cases
Use U+2243 when your notation standard calls for asymptotic equality (always define it in words for a general audience):
Relations of the form f ≃ g as a variable tends to a limit.
Algorithm complexity, analytic number theory, and applied-math approximations.
Calculus tutorials, MOOCs, and cheat sheets that stay in Unicode HTML.
Blog posts and preprints that mix inline math with plain paragraphs.
Equation toolbars, graphing helpers, and symbol pickers.
Pair the glyph with “asymptotically equal to” or use MathML/ARIA where readers need full semantics.
One code point works across languages for the same mathematical symbol.
💡 Best Practices
Do
- Prefer
≃or one numeric style consistently within a document - Use math fonts or stacks known for Mathematical Operators coverage
- Explain the limit or growth regime when you first introduce ≃
- Use
\2243only inside CSScontent, not HTML text - For serious layout, add MathML or KaTeX/MathJax alongside entities
Don’t
- Confuse
U+2243withU+2245(≅) orU+2248(almost equal) - Use HTML entities inside JavaScript strings (use
\u2243there instead) - Show the bare symbol in exams or UI with no verbal definition
- Assume every font draws the tilde and single bar with equal clarity
Key Takeaways
Named + numeric ways to write U+2243
≃ ≃ ≃CSS content escape
\2243Unicode U+2243 — ASYMPTOTICALLY EQUAL TO
HTML named reference ≃ maps to this code point
Mathematical Operators — not the same as ≅ or ≈
❓ Frequently Asked Questions
≃ (named), ≃ (hex), ≃ (decimal), or \2243 in CSS content. All render ≃.U+2243 (decimal 8771).≃, ≃, and ≃ are alternative spellings of the same code point in modern HTML.≅). U+2243 is the asymptotic-equality operator. They are different characters.≃, ≃, or ≃ in HTML. CSS uses backslash hex escapes inside content rules. Same glyph, different syntax layer.Explore More HTML Entities!
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