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U+1D5BB · Mathematical Sans-Serif Small B · Mathematical Alphanumeric Symbols · Common

Mathematical Sans-Serif Small B 𝖻

Visual Description: The MATHEMATICAL SANS-SERIF SMALL B appears as a clean, upright letter with uniform stroke width. It has no serifs and sits in a compact, geometric shape. In mathematical fonts, it blends with other sans-serif symbols yet remains clearly distinct from italic letters. It looks calm in dense formulas.

Meaning & Usage: In math, this character is a variable label and a component of equations. It is used to represent quantities, functions, or identifiers in a readable, non-italic style. Context decides its meaning, while the sans-serif shape helps distinguish it from italic text in formulas. It pairs with other symbols.

Historical Background: This variant emerged with the needs of digital typesetting to separate typographic style from content. It belongs to a family of mathematical alphanumeric symbols that provide distinct forms for variables and constants. The approach supports clarity in classrooms, calculators, and software, where consistent shapes help readers scan equations quickly.

Practical Use: In calculators and math apps, this small b can mark a variable, a component of a vector, or a label in a table. Quick UI controls allow users to switch font styles or toggle between plain, bold, and sans-serif variants. Formulas stay readable, and comparisons become faster with consistent glyphs.

See our category page for related symbols.

Look‑alikes: b (U+62).

Need styled alternatives? Try the Fancy Text tool.

Confusables

Technical details
  • Codepoint: U+1D5BB
  • General Category: Ll
  • Age: 3.1
  • Bidi Class: L
  • Decomposition: <font> 0062
  • Block: Mathematical Alphanumeric Symbols
  • Script: Common
  • UTF-8: F0 9D 96 BB
  • UTF-16: D835 DDBB
  • UTF-32: 0001D5BB
  • HTML dec: &#120251;
  • HTML hex: &#x1D5BB;
  • JS escape: \u{1D5BB}
  • Python \N{}: \N{MATHEMATICAL SANS-SERIF SMALL B}
  • Python \U: \U0001D5BB
  • URL-encoded: %F0%9D%96%BB
  • CSS escape: \1D5BB
How to type / insert

Fast copy: click the Copy button near the top of this page.

By codepoint: in many editors and IDEs, you can insert via the Unicode code U+1D5BB or a built‑in character picker.

HTML: use the numeric entity (hex) or (decimal) when an HTML entity is needed.

Compatibility & troubleshooting

Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.

Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.