Mathematical Bold Italic Small S Symbol
𝒔 is a Unicode mathematical letter used to represent variables in bold italic math text.
U+1D494
𝒔 is the Unicode character “MATHEMATICAL BOLD ITALIC SMALL S” (U+1D494). You can copy it anywhere you need a bold italic styled lowercase S for math or design layouts.
Mathematical Bold Italic Small S Symbol Meaning
𝒔 (MATHEMATICAL BOLD ITALIC SMALL S, U+1D494) is a styled lowercase S character intended for mathematical typography. It’s typically used when authors want the letter S to appear in a bold-italic “math variable” style, distinct from regular italic s or bold s. In practice, it can help differentiate quantities, sets, or parameters labeled with S—especially when multiple variables share similar names. Because it is a single Unicode character (not a font effect), it works best where your system and apps support the Unicode math glyph. Use it in equations, technical writing, and UI mockups that require consistent symbol styling.
Common uses
- •Representing a bold-italic S variable in math notes or documents
- •Labeling a parameter or quantity named S in formulas and worksheets
- •Using a consistent typographic style for math identifiers in UI text
- •Designing educational or technical graphics with styled math letters
- •Typing styled variables in markdown, text editors, and web content that support Unicode math glyphs
Examples
𝒔 Mathematical Bold Italic Small S
- 𝒔Let 𝒔 be the parameter in the model.
- 𝒔We define 𝒔 = (x + y)/2.
- 𝒔Compute the gradient with respect to 𝒔.
- 𝒔The set 𝒔 is determined by the constraints.
- 𝒔In our notation, 𝒔 denotes a scalar.
Variations
Ready to copy
Technical codes
| Unicode | U+1D494 | |
| HTML Entity | 𝒔 | |
| HTML Code | 𝒔 | |
| CSS | \1D494 |
FAQ
What does the Mathematical Bold Italic Small S symbol mean?
𝒔 (MATHEMATICAL BOLD ITALIC SMALL S, U+1D494) is a styled lowercase S character intended for mathematical typography. It’s typically used when authors want the letter S to appear in a bold-italic “math variable” style, distinct from regular italic s or bold s. In practice, it can help differentiate quantities, sets, or parameters labeled with S—especially when multiple variables share similar names. Because it is a single Unicode character (not a font effect), it works best where your system and apps support the Unicode math glyph. Use it in equations, technical writing, and UI mockups that require consistent symbol styling.
What Unicode character is 𝒔?
𝒔 is “MATHEMATICAL BOLD ITALIC SMALL S” with code point U+1D494.
How do I copy 𝒔 into my work?
Copy the symbol directly from this page. You can also use the provided HTML entity (𝒔) or escape sequences for code.
Is 𝒔 a font styling effect or a real Unicode character?
It is a real Unicode character. It is not created by styling the normal letter “s”; it has its own code point.
Why does 𝒔 look different or not appear in some apps?
Display depends on whether the app/font supports the Unicode math glyph U+1D494. If it’s not supported, the character may fall back to a missing-glyph symbol or look different.