Mathematical Bold Italic Small Theta Symbol
𝜽 is the mathematical bold italic small theta character used for bold/italic theta notation.
U+1D73D
𝜽 (U+1D73D) is a Unicode character in the math category. It’s commonly used when you need a bold italic form of the small theta symbol. You can copy it directly or use the provided HTML/CSS/JavaScript escapes.
Mathematical Bold Italic Small Theta Symbol Meaning
𝜽 is the Unicode character “MATHEMATICAL BOLD ITALIC SMALL THETA” (U+1D73D), a stylistic variant of the Greek letter theta intended for mathematical typesetting. The “small theta” part distinguishes it from capital forms, while “bold italic” indicates a specific visual style that may be required to match the rest of a formula or a typographic convention. In practice, it’s used in equations, technical writing, and math-focused UI text when a regular theta (θ) does not match the desired weight and slant. When sharing content online or implementing in software, using the correct Unicode code point ensures consistent rendering.
Common uses
- •Typing bold italic theta in math notes and textbooks
- •Labeling variables in equations where θ should be bold and italic
- •Designing math-themed UI elements or diagrams with consistent typography
- •Creating LaTeX-like mockups or rich-text posts that require Unicode math symbols
- •Using in developer content (e.g., documentation, math formatting strings) with correct encoding
Examples
𝜽 — Mathematical Bold Italic Small Theta
- 𝜽Let 𝜽 represent a parameter in the model.
- 𝜽Compute the derivative with respect to 𝜽.
- 𝜽We write f(𝜽) to denote the function value.
- 𝜽The vector component is proportional to 𝜽.
- 𝜽For small 𝜽, the approximation holds.
Variations
Ready to copy
Technical codes
| Unicode | U+1D73D | |
| HTML Entity | 𝜽 | |
| HTML Code | 𝜽 | |
| CSS | \1D73D | |
| Decimal | 120637 |
How to type Mathematical Bold Italic Small Theta Symbol (𝜽)
On Windows
In Word, type 1D73D 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 1d73d, then press Enter or Space.
Anywhere
Copy 𝜽 with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Mathematical Bold Italic Small Theta symbol mean?
𝜽 is the Unicode character “MATHEMATICAL BOLD ITALIC SMALL THETA” (U+1D73D), a stylistic variant of the Greek letter theta intended for mathematical typesetting. The “small theta” part distinguishes it from capital forms, while “bold italic” indicates a specific visual style that may be required to match the rest of a formula or a typographic convention. In practice, it’s used in equations, technical writing, and math-focused UI text when a regular theta (θ) does not match the desired weight and slant. When sharing content online or implementing in software, using the correct Unicode code point ensures consistent rendering.
What Unicode character is 𝜽?
𝜽 is “MATHEMATICAL BOLD ITALIC SMALL THETA” with code point U+1D73D.
How can I copy 𝜽 into HTML?
You can use the HTML entity: 𝜽
How do I use 𝜽 in CSS?
Use the CSS escape: \\1D73D
How do I insert 𝜽 in JavaScript?
Use: \\u{1D73D}