HTML Entity for Anticlockwise Contour Integral (∳)

Beginner

6 min read

Updated: Sep 2026

1 example

Unicode U+2233

HTML Entity for anticlockwise contour integral (∳) tutorial illustration

Definition

What Is the Anticlockwise Contour Integral Entity?

Anticlockwise contour integral (∳) is Unicode U+2233 in the Mathematical Operators block. It is the calculus operator for a contour integral taken anticlockwise (common in complex analysis). HTML provides the named entity &awconint;.

Remember

Character     ∳
Unicode       U+2233
Hex entity    &#x2233;
Decimal       &#8755;
Named entity  &awconint;
CSS escape    \2233
Related       ∮ U+222E · ∲ U+2232

All of these produce the same glyph: ∳. Prefer &awconint; in hand-written HTML; type ∳ in UTF-8 when you can; use numeric or CSS forms for generated content.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Direct character	`∳`	HTML text (UTF-8)
Named entity	`&awconint;`	HTML markup (preferred name)
Hex entity	`∳`	HTML markup
Decimal entity	`∳`	HTML markup
CSS escape	`\2233`	Stylesheet `content`
Clockwise partner	`&cwconint;` / `∲`	∲ (U+2232) — opposite orientation

When to Use Which

Situation	Use
Anticlockwise contour integral	`&awconint;` or type `∳`
Generic contour integral	∮ (U+222E)
Clockwise contour integral	∲ (U+2232) / `&cwconint;`
Need an entity in HTML source	`&awconint;`, `∳`, or `∳`
Generated text via `::before` / `::after`	`content: "\2233"`

See it

Live Preview

Anticlockwise contour integral in common study contexts.

Inline math ∳_C f(z) dz

Large glyph ∳

vs. related integrals ∳ anticlockwise · ∮ contour · ∲ clockwise

Monospace op: ∳ (U+2233)

With entities Named: ∳ | Hex: ∳ | Decimal: ∳

Code

Complete HTML Example

One page that shows ∳ with hex, decimal, named entity, CSS escape, and a typed character. Use View Output or open the live editor.

Hex + Decimal + Named + CSS + Typed

Five ways to produce ∳ in a single document.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Anticlockwise Contour Integral (∳) in HTML</title>
  <style>
    #point::after {
      content: "\2233";
    }
  </style>
</head>
<body>
  <p>Contour using Hex Code: &#x2233;</p>
  <p>Contour using HTML Code: &#8755;</p>
  <p>Contour using Named Entity: &awconint;</p>
  <p id="point">Contour using CSS Entity: </p>
  <p>Typed directly: ∳</p>
</body>
</html>

Try It Yourself

How It Works

1. Hex: U+2233 → ∳ in HTML. The browser turns it into ∳.

2. Decimal: same code point as 8755 → ∳. Same result as hex.

3. Named: &awconint; is the standard HTML name for U+2233 — clear in source.

4. CSS: use \2233 in content (not an HTML entity). #point::after appends that ∳ after the paragraph text.

5. Typed ∳: fine in UTF-8 source. All five lines show the same glyph.

Pitfalls & Tips

Common mistakes when working with the anticlockwise contour integral (∳) entity.

Orientation

Do not swap with clockwise

&awconint; is ∳. &cwconint; is ∲. Match the contour direction.

∮

Not a generic contour

∮ (U+222E) has no built-in orientation mark. Use ∳ when anticlockwise must be explicit.

CSS vs HTML

Do not mix escapes

\2233 belongs in CSS. &awconint; / ∳ belong in HTML.

Fonts

Use math-capable fonts

Some UI fonts omit Mathematical Operators. Prefer fonts with solid math coverage.

MathML

Complex formulas

For full equations, MathML or KaTeX/MathJax may be clearer than a lone Unicode glyph.

Semicolon

End references

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

Compatibility

Browser Support

Anticlockwise contour integral (U+2233) and its entity forms (&awconint;, ∳, ∳, CSS \\2233) are supported in all mainstream browsers. Glyph availability depends on font support for Mathematical Operators.

✓ Universal support

Anticlockwise Contour Integral (∳)

Type ∳, or encode with named, hex, decimal, or CSS escape — same glyph everywhere encoding is supported.

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+2233 / entities Full support

Bottom line: Prefer &awconint; or a typed ∳ for normal text. Use numeric forms when generating markup, and \\2233 only inside CSS content.

Remember

Key Takeaways

Unicode: anticlockwise contour integral is U+2233 (decimal 8755).
HTML: prefer &awconint; (or ∳ / ∳).
CSS: use \2233 inside content for generated text.
Watch out: ∳ ≠ ∮ ≠ ∲.

One line: U+2233 → &awconint; / ∳ / ∳ / CSS \2233.

Frequently Asked Questions

How do I display the anticlockwise contour integral (∳) in HTML using entities?

Use ∳ (hex), ∳ (decimal), &awconint; (named), or the CSS escape \2233 in the content property. All render ∳. You can also paste ∳ directly if your file is UTF-8.

What is the Unicode value for anticlockwise contour integral?

U+2233 (hex 2233, decimal 8755). Unicode names it Anticlockwise contour integral. It belongs to the Mathematical Operators block (U+2200–U+22FF).

Is there a named HTML entity for ∳ (U+2233)?

Yes. &awconint; maps to U+2233. Prefer it in hand-written HTML; numeric forms are useful in generated markup or XML contexts.

When should I use ∳ instead of ∮ or ∲?

Use ∳ when the contour is oriented anticlockwise. Use ∮ (U+222E) for a generic contour integral, and ∲ (U+2232 / &cwconint;) for clockwise orientation.

What is the difference between HTML code and CSS entity for ∳?

HTML entities (∳, ∳, or &awconint;) go in markup. The CSS escape \2233 is used in stylesheets (usually in the content property of ::before/::after). Both render ∳.

Why does the URL say counter-integral?

The site slug keeps an older short name. The Unicode character is Anticlockwise contour integral (U+2233) — same glyph this page documents.

Did you know?

Anticlockwise contour integral is Unicode U+2233 (decimal 8755) in the Mathematical Operators block. HTML provides the named entity &awconint;. The glyph ∳ marks a contour integral with anticlockwise orientation — not the same as plain contour ∮ (U+222E) or clockwise ∲ (U+2232).

Next: Anticlockwise Open Circle Arrow

Learn the HTML entity for the anticlockwise open circle arrow (↺) used in UI and diagrams.

Open Circle Arrow tutorial →

About the author

Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

Experience 12 years building web and cloud systems
Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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