HTML Entity for Not Asymptotically Equal To (≄)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+2244

What Is the Not Asymptotically Equal To Entity?

Not asymptotically equal to (≄) is the Mathematical Operators character at Unicode U+2244 (NOT ASYMPTOTICALLY EQUAL TO). It states that two expressions are not asymptotically equal — for example f(x) ≄ g(x).

Remember
Character     ≄
Unicode       U+2244
Named entity  ≄  (also ≄, ≄)
Hex entity    ≄
Decimal       ≄
CSS escape    \2244
Affirmative   ≃ (≃, U+2243)

Named, hex, decimal, CSS, and a typed character all produce the same glyph: ≄. Prefer ≄ in HTML source for clarity.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Named entity≄HTML markup (also ≄)
Hex entity≄HTML markup
Decimal entity≄HTML markup
CSS escape\2244Stylesheet content
Direct character≄UTF-8 HTML text

When to Use Which

SituationUse
Readable HTML source≄ or ≄
Numeric entity required≄ or ≄
Generated text via ::before / ::aftercontent: "\2244"
Asymptotically equal ≃≃ — see Asymptotically Equal To
Almost equal / not almost equal≈ / ≉

Live Preview

Not asymptotically equal to in comparison contexts.

Relation f(x) ≄ g(x)
Large glyph ≄
Named entity ≄ → ≄
vs ≃ / ≈ ≄  |  ≃  |  ≈
With entities Named: ≄ | Hex: ≄ | Decimal: ≄

Complete HTML Example

One page that shows this symbol with named, hex, decimal, and CSS forms. Use View Output or open the live editor.

Named + Hex + Decimal + CSS

Four ways to produce ≄ in a single document.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Not Asymptotically Equal To (&nsime;)</title>
  <style>
    #point::after {
      content: "\2244";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &nsime;</p>
  <p>Using Hex Code: &#x2244;</p>
  <p>Using HTML Code: &#8772;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Example: f(x) &nsime; g(x) as x &rarr; &infin;</p>
</body>
</html>
Try It Yourself

How It Works

1. Named: &nsime; (or &nsimeq;) is the clearest HTML form and renders ≄.

2. Hex: U+2244 → &#x2244; in HTML. Same result as the named entity.

3. Decimal: same code point as 8772 → &#8772;. Same result as hex.

4. CSS: use \2244 in content (not an HTML entity). #point::after appends that ≄ after the paragraph text.

Pitfalls & Tips

Common mistakes when working with the not-asymptotically-equal entity.

Pair

&nsime; ≠ &sime;

&nsime; is the negation. &sime; is the affirmative asymptotically equal to (≃).

Look-alikes

Not &napprox; or &ne;

&napprox; is ≉ (not almost equal). &ne; is ≠ (strict inequality). Pick the operator that matches your meaning.

Aliases

&nsime; = &nsimeq;

Both (and &NotTildeEqual;) map to U+2244. Pick one and stay consistent.

CSS vs HTML

Do not mix escapes

\2244 belongs in CSS. &nsime; / &#x2244; / &#8772; belong in HTML.

Encoding

Declare UTF-8

If you paste ≄ directly, keep <meta charset="UTF-8"> so the file is not misread.

Semicolon

End references

Always finish with ; — write &nsime;, not &nsime.

Browser Support

Not asymptotically equal to (U+2244) and its entity forms (&nsime;, &#x2244;, &#8772;, CSS \\2244) are supported in all modern browsers. Glyph availability depends on the font.

✓ Universal encoding

Not Asymptotically Equal To (&nsime;)

Encode with named, hex, decimal, or CSS escape — or paste ≄ directly in UTF-8 HTML.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer All versions
Yes
U+2244 Full support

Bottom line: Prefer &nsime; (or &nsimeq;) for readable HTML. Use \\2244 only inside CSS content.

Key Takeaways

  • Unicode: this character is U+2244 (decimal 8772).
  • HTML: prefer &nsime; (alias &nsimeq;) — or use &#x2244; / &#8772;.
  • CSS: use \2244 inside content for generated text.
  • Watch out: &nsime; ≠ &sime; ≠ &napprox;.

One line: U+2244 → &nsime; / &#x2244; / &#8772; / CSS \2244.

Frequently Asked Questions

Use &nsime; or &nsimeq; (named), &#x2244; (hex), &#8772; (decimal), type ≄ in UTF-8, or the CSS escape \2244 in content. All render ≄. Prefer &nsime; in HTML source.
U+2244 (NOT ASYMPTOTICALLY EQUAL TO). Hex 2244, decimal 8772. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. HTML5 defines &nsime;, &nsimeq;, and &NotTildeEqual; (aliases for the same character). Related: &sime; for ≃ (U+2243).
Use it when two expressions are not asymptotically equal (e.g. f(x) ≄ g(x) as x → ∞). Prefer &nsime; for readable source. For the affirmative form use &sime; (≃).
HTML entities (&nsime;, &#8772;, or &#x2244;) go in markup. The CSS escape \2244 is used in stylesheets (usually in the content property of ::before/::after). Both render ≄.
≃ (U+2243, &sime;) means asymptotically equal. ≈ (U+2248, &asymp;) means almost equal. ≄ (&nsime;) specifically means not asymptotically equal — do not substitute one for another.

Did you know?

Not asymptotically equal to (≄) is Unicode U+2244 (decimal 8772) — NOT ASYMPTOTICALLY EQUAL TO in Mathematical Operators. HTML5 provides &nsime;, &nsimeq;, and &NotTildeEqual; (same glyph). It negates asymptotically equal to (&sime;, ≃, U+2243).

Next: Not Element Of

Learn the HTML entity for ∉ / U+2209 — next in this sequence.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
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I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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