Mathematical Bold Script Small F 𝓯
Visual Description: This character appears as a bold, flowing script form of the letter f. It has elegant curves and a tall ascender, with thick strokes that lift above the baseline. In text and math, it reads as a decorative function symbol. It is common in stylized fonts used in formulas and proofs.
Meaning & Usage: The bold script f is used to denote a function or a named object in equations. It stands apart from plain letters, signaling special status in formulas. In UI contexts, it can label buttons or shortcuts that apply a function or compare values quickly.
Historical Background: This style grew with the growth of typographic mathematics. It exists as part of a family of mathematical alphanumeric symbols and has been adopted in fonts and calculators to distinguish objects in formulas. The approach is general, not tied to any single author or era.
Practical Use: In practice, use the bold script f to indicate a function or mapping in notes, papers, or software. Many calculators offer quick UI controls to switch font styles or highlight operations. When building formulas, choose a matching font so the symbol clearly communicates operations or comparisons.
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+1D4EF - General Category:
Ll - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0066 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 93 AF - UTF-16:
D835 DCEF - UTF-32:
0001D4EF - HTML dec:
𝓯 - HTML hex:
𝓯 - JS escape:
\u{1D4EF} - Python \N{}:
\N{MATHEMATICAL BOLD SCRIPT SMALL F} - Python \U:
\U0001D4EF - URL-encoded:
%F0%9D%93%AF - CSS escape:
\1D4EF
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+1D4EF or a built‑in character picker.
HTML: use the numeric entity 퓯 (hex) or 퓯 (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.