Mathematical Bold Italic Capital E 𝑬
Visual Description: The glyph is a bold, italic capital E with a clear slant. It appears heavier than regular letters and stands out in equations. The stroke is clean and compact, designed to emphasize a quantity. In math editors and calculators, it appears as a stylized variable marker for emphasis.
Meaning & Usage: It signals emphasis or a special quantity in formulas. It can denote a variable, a vector component, or a key parameter in a model. In many contexts, bold italic styling helps readers distinguish a symbol from normal text. Calculators and editors often provide quick UI controls to apply it.
Historical Background: The use of bold italic letters grew from typographic practices that separate meaningful variables from ordinary words. Unicode expanded the set of styled alphanumeric symbols to support consistent math typography. This allowed editors to preserve legibility while using special forms across documents and computational tools.
Practical Use: In practical work, you can insert the symbol in formulas and equations to mark a central quantity. Use bold italic E to compare values side by side, or to highlight an important result. Quick UI controls in editors and calculators let you toggle bold, italic, or the symbol itself for clarity.
See our category page for related symbols.
Look‑alikes: E (U+45).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D46C - General Category:
Lu - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0045 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 91 AC - UTF-16:
D835 DC6C - UTF-32:
0001D46C - HTML dec:
𝑬 - HTML hex:
𝑬 - JS escape:
\u{1D46C} - Python \N{}:
\N{MATHEMATICAL BOLD ITALIC CAPITAL E} - Python \U:
\U0001D46C - URL-encoded:
%F0%9D%91%AC - CSS escape:
\1D46C
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+1D46C or a built‑in character picker.
HTML: use the numeric entity 푬 (hex) or 푬 (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.