What 𝛆 means
It marks a Greek epsilon as a distinct mathematical variable.
A 1999 proposal to Unicode, the standard for computer text characters, documented bold Greek and Latin letters already used in scientific publishing. Giving styles separate characters lets unformatted formulas preserve which variable is meant.
Can text processing erase the bold distinction?
Yes. Compatibility normalization can fold it to plain ε.
NFKC normalization and NFKD can fold mathematical style distinctions into base Greek letters. If the distinction matters in an equation or data exchange, use a workflow that preserves the original character.
Why might 𝛆 look different on another screen?
The selected font can change its displayed shape.
Unicode's 2025 report on mathematical notation notes that some systems lack the specialized math fonts these characters need, so a glyph may be missing or differ from the chart design.
Part of the collection
Don't confuse it with
1
Related characters
1
More like this
10
How to type or find 𝛆
- Search it as
- bold epsilon · bold Greek epsilon · math epsilon · epsilon variant
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝛆\1D6C6Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.