HTML Entity Detail

HTML Entity - Real Numbers

Real Numbers is a letterlike mathematical symbols representing number sets and special functions. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.

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Symbol preview

ℝ

Unicode

U+211D

HTML entity

&Ropf;

CSS code

\211D

Usage Examples

Use this HTML entity in mathematical notation for number sets like ℝ (real numbers) and ℕ (natural numbers), and physics constants.

Related Entities

ℑ Black Letter Capital I ℜ Black Letter Capital R ℂ Complex Numbers ℤ Integers ℕ Natural Numbers ℚ Rational Numbers

Common Mistakes

⚠️

Mistake: Using R instead of ℝ for real numbers

Fix: Use &Ropf; (ℝ) for the set of real numbers. Plain R can be confused with other meanings. The double-struck ℝ is the standard mathematical symbol.

⚠️

Mistake: Confusing ℝ (real numbers) with ℜ (real part operator)

Fix: ℝ is the set of all real numbers. ℜ (&real;) denotes the real part of a complex number: ℜ(z).

Real Numbers

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Category: Letterlike Symbols

Unicode	`U+211D`
Hex Code	`ℝ`
HTML Code	`ℝ`
HTML Entity	`&Ropf;`
CSS Code	`\211D`
Windows Shortcut
Mac Shortcut

HTML code example

<span>&#8477;</span>

CSS code example

span {
    content : "\211D";
}

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