Mathematical Bold Capital O Symbol
π (U+1D40E) is the Mathematical Bold Capital O used to represent bold βOβ in math and technical text.
U+1D40E
The symbol π is a mathematical bold form of a capital letter O. Itβs useful when you need a typographic βbold Oβ that matches mathematical styling. You can copy it directly or use its Unicode details in your project.
Mathematical Bold Capital O Symbol Meaning
π is the Unicode character βMATHEMATICAL BOLD CAPITAL Oβ with code point U+1D40E. In practice, itβs used as a bold, math-styled capital O rather than a regular uppercase O. Designers and writers use it to create visual hierarchy in formulas, labels, or variables, especially when distinguishing different sets of symbols. In development, it can be used anywhere Unicode text is supported, such as HTML, CSS, and JavaScript, to ensure the correct glyph appears reliably.
Common uses
- β’Typing bold math variables or constants labeled with O
- β’Designing equation headings or emphasized βOβ terms in documents
- β’Creating consistent typography in technical diagrams and labeling
- β’Using in UI text where a math-styled bold capital O is preferred
- β’Programmatically inserting the symbol via Unicode escape sequences
Examples
π β Mathematical Bold Capital O
- πLet π be an origin point.
- πCompute the value of π in the formula.
- πThe set is denoted by π.
- πUse π to label the output.
- πCompare π with π and note the style difference.
Variations
Ready to copy
Technical codes
| Unicode | U+1D40E | |
| HTML Entity | 𝐎 | |
| HTML Code | 𝐎 | |
| CSS | \1D40E |
FAQ
What does the Mathematical Bold Capital O symbol mean?
π is the Unicode character βMATHEMATICAL BOLD CAPITAL Oβ with code point U+1D40E. In practice, itβs used as a bold, math-styled capital O rather than a regular uppercase O. Designers and writers use it to create visual hierarchy in formulas, labels, or variables, especially when distinguishing different sets of symbols. In development, it can be used anywhere Unicode text is supported, such as HTML, CSS, and JavaScript, to ensure the correct glyph appears reliably.
What Unicode character is π?
π is the character βMATHEMATICAL BOLD CAPITAL Oβ, Unicode code point U+1D40E.
How can I copy π into my work?
Copy the character directly from this page, or paste the symbol into your document/editor. Itβs the exact glyph for the Unicode mathematical bold capital O.
What are the Unicode escape forms for π in code?
HTML entity: 𝐎. CSS escape: \\1D40E. JavaScript escape: \\u{1D40E}.
Why use π instead of a regular βOβ?
Because π is a specifically mathematical bold-styled capital O, which helps match typographic conventions in equations, variable labels, and technical designs.