Mathematical Sans-Serif Small X 𝗑
Visual Description: This character is a lowercase x set in a clean mathematical sans-serif type. It has even stroke width and no serifs, giving it a modern, compact look. The shape is simple and easy to distinguish from other letters on screens. In UI and formulas it reads quickly.
Meaning & Usage: This x represents an unknown, variable, or parameter in equations. In math, it often stands for a value that can change. In calculators and software, it signals a variable input or a placeholder for a result. It is used with operators to form concise expressions.
Historical Background: The sans-serif style emerged as a way to improve readability on screens and at small sizes. Mathematicians and designers adopted uniform stroke widths to keep symbols consistent across devices. The idea was to reduce visual noise and support fast comparison, especially in lists and calculators.
Practical Use: In teaching and computing, the symbol appears in formulas and comparisons. It pairs with operators for quick checks or substitutions. In interfaces, you may see a small x as a placeholder for input, or as a focus target in a numeric keypad. Its clarity aids rapid reasoning.
See our category page for related symbols.
Look‑alikes: x (U+78).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D5D1 - General Category:
Ll - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0078 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 97 91 - UTF-16:
D835 DDD1 - UTF-32:
0001D5D1 - HTML dec:
𝗑 - HTML hex:
𝗑 - JS escape:
\u{1D5D1} - Python \N{}:
\N{MATHEMATICAL SANS-SERIF SMALL X} - Python \U:
\U0001D5D1 - URL-encoded:
%F0%9D%97%91 - CSS escape:
\1D5D1
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+1D5D1 or a built‑in character picker.
HTML: use the numeric entity 헑 (hex) or 헑 (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.