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𝕓

Mathematical Double-struck Small B Symbol

𝕓 is the mathematical double-struck small b character (U+1D553).

U+1D553

The symbol 𝕓 is a Unicode character used to represent a β€œdouble-struck” lowercase b in mathematical contexts. Designers and writers sometimes use it to add typographic distinction to variables or labels. Below you’ll find the exact code point and practical ways to copy and use it.

Mathematical Double-struck Small B Symbol Meaning

𝕓 is the Unicode character β€œMATHEMATICAL DOUBLE-STRUCK SMALL B” (U+1D553). It belongs to the Math category and is typically used as a stylistic variant of the letter b in mathematical notation. Double-struck letterforms are often employed to visually distinguish different kinds of symbols or sets/objects in formal writing. In everyday usage outside of math, 𝕓 may be used as a decorative or branding-like typographic element when you want a special β€œmath font” look for a lowercase b.

Common uses

  • β€’Typing math variables in equations and proofs that use double-struck styling
  • β€’Labeling sets, constants, or indexed quantities with a distinct b symbol
  • β€’Creating consistent notation in educational worksheets and technical documents
  • β€’Designing math-themed graphics, posters, or UI text with a math-style b
  • β€’Using the character in web typography to match a specific math font style

Examples

𝕓 β€” Mathematical Double-Struck Small B

  • 𝕓Let 𝕓 be a base element of the sequence.
  • 𝕓Define the family 𝕓 = {𝕓₁, 𝕓₂, …}.
  • 𝕓We write the transformation as 𝕓(x) for clarity.
  • 𝕓Choose 𝕓 such that the constraints hold.
  • 𝕓The parameter 𝕓 determines the behavior of the model.

Variations

Ready to copy

Technical codes

UnicodeU+1D553
HTML Entity𝕓
HTML Code𝕓
CSS\1D553

FAQ

What does the Mathematical Double-struck Small B symbol mean?

𝕓 is the Unicode character β€œMATHEMATICAL DOUBLE-STRUCK SMALL B” (U+1D553). It belongs to the Math category and is typically used as a stylistic variant of the letter b in mathematical notation. Double-struck letterforms are often employed to visually distinguish different kinds of symbols or sets/objects in formal writing. In everyday usage outside of math, 𝕓 may be used as a decorative or branding-like typographic element when you want a special β€œmath font” look for a lowercase b.

What Unicode character is 𝕓?

𝕓 is β€œMATHEMATICAL DOUBLE-STRUCK SMALL B” with code point U+1D553.

How can I copy 𝕓 into HTML?

Use the HTML entity: 𝕓.

How do I type or encode 𝕓 in JavaScript?

You can use the JavaScript Unicode escape: \\u{1D553}.

Is 𝕓 just a stylized version of the letter b?

Yesβ€”it's a double-struck mathematical b variant. In math writing, it’s used when you need that specific stylized form for notation.