HTML Entity for Nabla (∇)
What You'll Learn
How to display the Nabla symbol (∇) in HTML using named, hexadecimal, decimal, and CSS escape methods. This character is U+2207 (NABLA) in the Mathematical Operators block (U+2200–U+22FF)—the del operator used for gradients, divergence, curl, and Laplacian in vector calculus, physics, and engineering.
Render it with the named entity ∇, ∇, ∇, or CSS escape \2207. Also called the del or gradient operator in STEM notation on the web.
⚡ Quick Reference — Nabla
U+2207Mathematical Operators
∇Hexadecimal reference
∇Decimal reference
∇Most readable in math markup
Name Value
──────────── ──────────
Unicode U+2207
Hex code ∇
HTML code ∇
Named entity ∇
CSS code \2207
Meaning Del / nabla (vector differential operator)
Common uses ∇f, ∇·F, ∇×F, ∇²Complete HTML Example
This example demonstrates Nabla (∇) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2207";
}
</style>
</head>
<body>
<p>Nabla using Hexadecimal: ∇</p>
<p>Nabla using HTML Code: ∇</p>
<p>Nabla using Named Entity: ∇</p>
<p id="point">Nabla using CSS Entity: </p>
</body>
</html>🌐 Browser Support
U+2207 is widely supported wherever Unicode Mathematical Operators render correctly:
👀 Live Preview
See Nabla (∇) in vector calculus and physics contexts:
🧠 How It Works
Named Entity
∇ is the HTML named entity for Nabla—often preferred in readable vector calculus markup.
Hexadecimal Code
∇ uses the Unicode hexadecimal value 2207. The x prefix indicates hexadecimal format.
Decimal HTML Code
∇ uses the decimal Unicode value 8711 to display the same character.
CSS Entity
\2207 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce: ∇. Unicode U+2207 in Mathematical Operators. Also known as the del operator.
Use Cases
The Nabla symbol (∇) is commonly used in:
Gradient, divergence, curl, and Laplacian notation.
Electromagnetism, fluid dynamics, and field equations.
Heat transfer, stress analysis, and simulation docs.
Multivariable calculus textbooks and lecture notes.
Online courses and interactive math/physics content.
Unicode charts and HTML entity documentation.
💡 Best Practices
Do
- Use
∇for readable del-operator markup - Pair with dot (·) and × for divergence and curl notation
- Use fonts that cover Mathematical Operators (Cambria Math, etc.)
- Add
aria-label(e.g. “nabla” or “del operator”) for accessibility - Serve pages with UTF-8 (
<meta charset="utf-8">)
Don’t
- Substitute an upside-down triangle drawing for ∇ in formal notation
- Assume HTML entities perform vector calculus computation
- Put CSS escape
\2207in HTML text nodes - Mix entity styles randomly in one file
- Rely on the symbol alone without accessible description
Key Takeaways
Three HTML references plus CSS all render ∇
∇ ∇ ∇For CSS stylesheets, use the escape in the content property
\2207Unicode U+2207 — NABLA (del operator)
∇ is the standard named entity
Common forms: ∇f, ∇·F, ∇×F, ∇²
❓ Frequently Asked Questions
∇ (named), ∇ (hex), ∇ (decimal), or \2207 in CSS content. All produce ∇.U+2207 (NABLA). Mathematical Operators block (U+2200–U+22FF). Hex 2207, decimal 8711. Named entity: ∇.∇, ∇, or ∇) go directly in markup. The CSS escape \2207 is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.Explore More HTML Entities!
Discover 1500+ HTML character references — math operators, physics symbols, and more.
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