Mathematical Sans-Serif Bold Small F 𝗳
Visual Description: The character is a bold sans-serif lowercase f. It has a straight vertical stroke with a short crossbar, a rounded bowl, and a smooth tail that curves slightly to the right. The lines are even in weight, giving it a mechanical, modern look suitable for digital typesetting and icons.
Meaning & Usage: This symbol is used as a variable or function marker in formulas and calculators. It can denote a function f(x) & a quick operation label in UI tools. It contrasts with serif letters, offering clarity in dense math screens and graphs. It has no fixed semantic on its own.
Historical Background: The bold sans-serif family helps differentiate symbols on screens and in print. These forms are designed for clarity at small sizes to pair with UI controls and icons. The aim is legibility in compact math layouts rather than decorative styling.
Practical Use: Used in teaching apps, grids, and calculators, this character acts as a ready-made symbol for functions and labeled actions. It pairs with quick UI controls for operations or comparisons, like a function button or a selection choice. Keep math interfaces clean and fast.
See our category page for related symbols.
Look‑alikes: f (U+66).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D5F3 - General Category:
Ll - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0066 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 97 B3 - UTF-16:
D835 DDF3 - UTF-32:
0001D5F3 - HTML dec:
𝗳 - HTML hex:
𝗳 - JS escape:
\u{1D5F3} - Python \N{}:
\N{MATHEMATICAL SANS-SERIF BOLD SMALL F} - Python \U:
\U0001D5F3 - URL-encoded:
%F0%9D%97%B3 - CSS escape:
\1D5F3
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+1D5F3 or a built‑in character picker.
HTML: use the numeric entity 헳 (hex) or 헳 (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.