Mathematical Bold Italic Small Z 𝒛
Visual Description: This glyph is the letter z drawn in bold and italic style. It is a small letter, with a slanted posture and thick strokes. In math fonts, the character looks heavier than normal text and sits higher on the line. It is easy to spot in formulas.
Meaning & Usage: It signals a variable or quantity in equations. The bold italic style helps distinguish the symbol from ordinary text. In many contexts, z marks a parameter, a dependent value, or a term in a formula. It appears in notes, papers, and digital calculators with clear emphasis.
Historical Background: The use of bold and italic styles to mark special variables grew with the rise of mathematical typography. Designers and typographers created fonts that support bold italic forms for clear notation. Digital typesetting and encoding systems later standardized this style, making the glyph available across software and devices.
Practical Use: In formulas and educational tools, you may see this symbol chosen to emphasize a variable. Calculators, math editors, and UI panels offer quick controls to apply bold or italic emphasis or to switch between related symbols. Users can insert it for comparisons, proofs, or compact notation.
See our category page for related symbols.
Look‑alikes: z (U+7A).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D49B - General Category:
Ll - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 007A - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 92 9B - UTF-16:
D835 DC9B - UTF-32:
0001D49B - HTML dec:
𝒛 - HTML hex:
𝒛 - JS escape:
\u{1D49B} - Python \N{}:
\N{MATHEMATICAL BOLD ITALIC SMALL Z} - Python \U:
\U0001D49B - URL-encoded:
%F0%9D%92%9B - CSS escape:
\1D49B
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+1D49B or a built‑in character picker.
HTML: use the numeric entity 풛 (hex) or 풛 (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.