Mathematical Sans-Serif Bold Capital E 𝗘
Visual Description: This symbol is a bold, geometric E with clean, straight strokes. It uses a sans-serif design and even line widths. The arms are clear and evenly spaced, giving a compact, modern silhouette. It can appear alone or with subscripts and nearby symbols in a formula. In UI, it can be an icon for actions.
Meaning & Usage: It names a variable, a constant label, or a component in a matrix or vector. Its bold style marks emphasis and helps distinguish it from surrounding text. In formulas it can stand for a quantity, a set, or an identifier, depending on context. It guides quick reading.
Historical Background: This style belongs to a family of mathematical alphanumeric symbols designed to separate math notation from everyday text. The bold sans-serif form grew with modern font design to stay legible on screens and in print. It shares roots with other bold letters used for important terms.
Practical Use: In teaching, software, and calculators, this symbol appears in formulas and in quick UI controls for operations or comparisons. It can label a term in an equation or act as a pivot in a step. Designers use it to keep interfaces legible at small sizes.
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+1D5D8 - General Category:
Lu - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0045 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 97 98 - UTF-16:
D835 DDD8 - UTF-32:
0001D5D8 - HTML dec:
𝗘 - HTML hex:
𝗘 - JS escape:
\u{1D5D8} - Python \N{}:
\N{MATHEMATICAL SANS-SERIF BOLD CAPITAL E} - Python \U:
\U0001D5D8 - URL-encoded:
%F0%9D%97%98 - CSS escape:
\1D5D8
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+1D5D8 or a built‑in character picker.
HTML: use the numeric entity 험 (hex) or 험 (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.