HTML Entity for Not Almost Equal To (≉)
What You'll Learn
How to display the Not Almost Equal To symbol (≉) in HTML using hexadecimal, decimal, and CSS escape methods. This mathematical operator negates “almost equal to” and is used when two values are not approximately equal (e.g. x ≉ y).
This character is U+2249 (NOT ALMOST EQUAL TO) in the Mathematical Operators block (U+2200–U+22FF). Render it with ≉, ≉, or CSS escape \2249. There is no named HTML entity. Compare with Almost Equal To (≈, ≈) and not equal (≠, ≠).
⚡ Quick Reference — Not Almost Equal To
U+2249Mathematical Operators
≉Hexadecimal reference
≉Decimal reference
—No named entity
Name Value
──────────── ──────────
Unicode U+2249
Hex code ≉
HTML code ≉
Named entity (none)
CSS code \2249
Meaning Not almost equal to
Related U+2248 = almost equal (≈, ≈)
U+2260 = not equal (≠, ≠)
U+2247 = neither approx. nor equal (≇, ≇)
Block Mathematical Operators (U+2200–U+22FF)Complete HTML Example
A simple example showing ≉ using hexadecimal code, decimal HTML code, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point::after{
content: "\2249";
}
</style>
</head>
<body>
<p>Symbol (hex): ≉</p>
<p>Symbol (decimal): ≉</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>🌐 Browser Support
U+2249 is widely supported wherever Unicode Mathematical Operators render correctly:
👀 Live Preview
See ≉ in mathematical comparison contexts:
🧠 How It Works
Hexadecimal Code
≉ uses the Unicode hexadecimal value 2249 to display the not-almost-equal symbol.
Decimal HTML Code
≉ uses the decimal Unicode value 8777 to display the same character.
CSS Entity
\2249 is used in CSS stylesheets, typically in the content property of pseudo-elements like ::before and ::after.
Same visual result
All three methods produce: ≉. Unicode U+2249 in Mathematical Operators (U+2200–U+22FF). There is no named HTML entity.
Use Cases
The Not Almost Equal To symbol (≉) is commonly used in:
Expressing that two quantities are not approximately equal.
Textbooks, papers, and lecture notes published as HTML.
Tolerance and measurement comparisons in technical docs.
Floating-point precision examples and numerical analysis.
Interactive math modules with web-based notation.
Unicode charts and HTML entity documentation for math symbols.
💡 Best Practices
Do
- Use numeric references (
≉or≉) in HTML for portability - Use
\2249in CSScontentwhen inserting via pseudo-elements - Distinguish ≉ from ≈ (almost equal) and ≠ (not equal)
- Pair ≉ with plain-language description on first use
- Serve pages with UTF-8 (
<meta charset="utf-8">)
Don’t
- Confuse ≉ with ≠ (not equal) or ≈ (almost equal)
- Use padded Unicode notation like U+02249—the correct value is
U+2249 - Put CSS escape
\2249in HTML text nodes - Use
\02249in CSS—the correct escape is\2249 - Rely on the glyph alone without accessible description
Key Takeaways
Three references render ≉ (no named entity)
≉ ≉For CSS stylesheets, use the escape in the content property
\2249Unicode U+2249 — NOT ALMOST EQUAL TO
Mathematical Operators block (U+2200–U+22FF)
No named entity—use numeric codes or UTF-8 literal in source files
❓ Frequently Asked Questions
≉ (hex), ≉ (decimal), or \2249 in CSS content. All produce ≉. There is no named HTML entity.U+2249 (NOT ALMOST EQUAL TO). Mathematical Operators block (U+2200–U+22FF). Hex 2249, decimal 8777.≉ or ≉) go in markup. The CSS escape \2249 goes in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.Explore More HTML Entities!
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