Mathematical Italic Capital O Symbol
π is the mathematical italic form of a capital O, used for precise typography in technical writing.
U+1D442
The symbol π is the Unicode character βMATHEMATICAL ITALIC CAPITAL Oβ (U+1D442). Itβs commonly used when you need italic styling that differs from a plain italic O. You can copy it directly or use the provided code points and escape sequences.
Mathematical Italic Capital O Symbol Meaning
π (U+1D442) is a Unicode character from the βMathβ category: βMATHEMATICAL ITALIC CAPITAL O.β It represents a capital O rendered in mathematical italic style rather than the regular (upright) O. In practice, this helps maintain consistent math typography across documents, equations, and design systems where italicized math letters are expected. Depending on the context, it may label sets, variables, or named quantities in technical text, and it can be used as a typographic accent in formulas, UI labels, or equations where distinguishing letter shapes matters. Its key value is accurate italic math rendering.
Common uses
- β’Typing mathematical variables in italic style for formulas and equations
- β’Labeling entities (e.g., sets, operators, or symbols) in math and science documents
- β’Designing UI or dashboards that use math-styled typography consistently
- β’Creating typographic symbols for education content and worksheets
- β’Inserting correct Unicode characters in code, markdown, and documentation
Examples
π β Mathematical Italic Capital O
- πLet π denote the center point.
- πChoose π such that the condition holds.
- πWe define the mapping from π to π.
- πIn the expression, π appears as a parameter.
- πThe value of π is computed numerically.
Variations
Ready to copy
Technical codes
| Unicode | U+1D442 | |
| HTML Entity | 𝑂 | |
| HTML Code | 𝑂 | |
| CSS | \1D442 | |
| Decimal | 119874 |
How to type Mathematical Italic Capital O Symbol (π)
On Windows
In Word, type 1D442 then press Alt + X. Or open the emoji picker with Windows key + period.
On Mac
Press Control + Command + Space to open Character Viewer and search for the character.
On Linux
Press Control + Shift + U, type 1d442, then press Enter or Space.
Anywhere
Copy π with the button above and paste it wherever you need it β this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Mathematical Italic Capital O symbol mean?
π (U+1D442) is a Unicode character from the βMathβ category: βMATHEMATICAL ITALIC CAPITAL O.β It represents a capital O rendered in mathematical italic style rather than the regular (upright) O. In practice, this helps maintain consistent math typography across documents, equations, and design systems where italicized math letters are expected. Depending on the context, it may label sets, variables, or named quantities in technical text, and it can be used as a typographic accent in formulas, UI labels, or equations where distinguishing letter shapes matters. Its key value is accurate italic math rendering.
What is the Unicode code point for π?
π is U+1D442, named βMATHEMATICAL ITALIC CAPITAL O.β
How can I copy π into HTML?
Use the HTML entity: 𝑂.
How do I include π in CSS?
You can use the CSS escape: \\1D442.
Whatβs the JavaScript escape sequence for π?
In JavaScript, you can use: \\u{1D442}.