Mathematical Bold Capital B Symbol
π is the mathematical bold capital letter B, used to represent bold vectors, sets, or labeled quantities.
U+1D401
The symbol π is a mathematical bold variant of the capital letter B. Itβs commonly used in formatted text where a βboldβ math style is needed.
Mathematical Bold Capital B Symbol Meaning
π is the Unicode character βMATHEMATICAL BOLD CAPITAL Bβ (U+1D401, HTML entity: 𝐁). It belongs to the Math category and is typically used as a typographic math symbol rather than as ordinary text. Designers and writers use it to emphasize a specific labeled quantity (such as a bold variable name, a vector-like label, or a named set) in plain text or when math-styled fonts are available. Because itβs visually distinct from the regular βBβ, it helps keep mathematical notation consistent across devices that support this Unicode character.
Common uses
- β’Labeling a bold mathematical variable in plain-text formulas
- β’Using in slide decks or documents to match math-bold typography
- β’Marking named sets or objects in technical writing
- β’Creating consistent typographic emphasis in UI mockups
- β’Referencing a specific symbol in educational or documentation text
Examples
π Mathematical Bold Capital B
- πLet π be a bold matrix label.
- πWe denote the set by π.
- πCompare vectors π and π in the diagram.
- πUse π as the parameter name in this section.
- πThe highlighted quantity is π.
Variations
Ready to copy
Technical codes
| Unicode | U+1D401 | |
| HTML Entity | 𝐁 | |
| HTML Code | 𝐁 | |
| CSS | \1D401 |
FAQ
What does the Mathematical Bold Capital B symbol mean?
π is the Unicode character βMATHEMATICAL BOLD CAPITAL Bβ (U+1D401, HTML entity: 𝐁). It belongs to the Math category and is typically used as a typographic math symbol rather than as ordinary text. Designers and writers use it to emphasize a specific labeled quantity (such as a bold variable name, a vector-like label, or a named set) in plain text or when math-styled fonts are available. Because itβs visually distinct from the regular βBβ, it helps keep mathematical notation consistent across devices that support this Unicode character.
What Unicode character is π?
π is βMATHEMATICAL BOLD CAPITAL Bβ with Unicode code point U+1D401.
How can I copy π safely in my documents?
Copy the character directly from this page. If you need typing by escape, use the provided HTML entity or CSS/JavaScript escapes below.
What is the HTML entity for π?
The HTML entity for π is 𝐁.
How do I use π in CSS or JavaScript?
CSS escape: \\1D401. JavaScript escape: \\u{1D401}.