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𝐑

Mathematical Bold Small H Symbol

𝐑 is a mathematical bold small letter h used for consistent typographic styling in formulas and technical text.

U+1D421

𝐑 is the mathematical bold small version of the letter h. It’s commonly used when you need typography that matches math notation. You can copy it directly or use the provided HTML/CSS/JavaScript escapes.

Mathematical Bold Small H Symbol Meaning

The character 𝐑 (U+1D421) is named β€œMATHEMATICAL BOLD SMALL H.” It’s part of Unicode’s mathematical alphanumeric symbols, designed to look bold while still representing a lowercase h. In practice, it helps distinguish variables, labels, or vectors (depending on the surrounding notation) from regular text or from non-bold letters. Designers also use it when bold small-h styling is preferred over using a standard h with synthetic font weight. Because it is a distinct Unicode character, it behaves consistently across systems that support the mathematical symbol fonts.

Common uses

  • β€’Math notation for bold lowercase h variables or parameters
  • β€’Typography in technical documents where bold math styling must match
  • β€’Designing posters, slides, and infographics with math-consistent lettering
  • β€’Using as a styled label in charts, equations, and diagram annotations
  • β€’Content creation where a bold small-h symbol is needed for clarity

Examples

𝐑 Mathematical Bold Small H

  • 𝐑𝐑 = 𝐦𝐱 + 𝐛
  • 𝐑Let 𝐑 be the input parameter.
  • 𝐑The transfer function is described using 𝐑.
  • 𝐑We solve for 𝐑 in the second step.
  • 𝐑Set 𝐑 = 0 to test the boundary case.

Variations

Ready to copy

Technical codes

UnicodeU+1D421
HTML Entity𝐡
HTML Code𝐡
CSS\1D421

FAQ

What does the Mathematical Bold Small H symbol mean?

The character 𝐑 (U+1D421) is named β€œMATHEMATICAL BOLD SMALL H.” It’s part of Unicode’s mathematical alphanumeric symbols, designed to look bold while still representing a lowercase h. In practice, it helps distinguish variables, labels, or vectors (depending on the surrounding notation) from regular text or from non-bold letters. Designers also use it when bold small-h styling is preferred over using a standard h with synthetic font weight. Because it is a distinct Unicode character, it behaves consistently across systems that support the mathematical symbol fonts.

How do I copy 𝐑 on desktop?

Select the character 𝐑 on this page and copy/paste it into your document, editor, or design tool.

What is the Unicode code point for 𝐑?

U+1D421.

How do I use 𝐑 in HTML?

Use the HTML entity: 𝐡.

What are the CSS and JavaScript escapes for 𝐑?

CSS escape: \\1D421. JavaScript escape: \\u{1D421}.