Mathematical Script Capital Y 𝒴
Visual Description: This character appears as a flourished, calligraphic uppercase Y. In a script style, it has looping curves and a long, elegant tail in some fonts. It looks distinct from the plain Y and sits within the same alphabet family as other MATHEMATICAL SCRIPT letters. In print, it feels decorative yet legible.
Meaning & Usage: In mathematics, a script capital Y is mainly a typographic variant. It signals a named quantity, a special object, or a function distinct from ordinary variables. Context defines its value. It appears in inline formulas or displayed equations to aid readability and emphasis.
Historical Background: Script letters entered mathematical notation as a way to separate different kinds of objects on the page. Over time, printers and type designers expanded the family, and digital fonts carried the style into software. The symbol carries no fixed meaning by itself; meaning comes from its context.
Practical Use: In teaching tools and editors, you may toggle a script font to label certain quantities. It helps separate families of objects from plain variables. In calculators and quick UI controls, users insert script letters to denote special cases or compare items without clutter.
See our category page for related symbols.
Look‑alikes: Y (U+59).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D4B4 - General Category:
Lu - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0059 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 92 B4 - UTF-16:
D835 DCB4 - UTF-32:
0001D4B4 - HTML dec:
𝒴 - HTML hex:
𝒴 - JS escape:
\u{1D4B4} - Python \N{}:
\N{MATHEMATICAL SCRIPT CAPITAL Y} - Python \U:
\U0001D4B4 - URL-encoded:
%F0%9D%92%B4 - CSS escape:
\1D4B4
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+1D4B4 or a built‑in character picker.
HTML: use the numeric entity 풴 (hex) or 풴 (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.