What 𝗯 means
Its style distinguishes it in a formula. In physics and engineering, bold letters can denote vectors; the author's notation gives this b its role.
Math notation uses letter styles to distinguish symbols. Unicode stores these styles as characters, so plain-text formulas keep the difference; fonts supply the outline.
Why can NFKC turn 𝗯 into b?
NFKC maps it to ordinary b. This compatibility cleanup can erase a formula's distinction; keep the mathematical form when its style matters.
For mathematical notation, where the style can identify a symbol; ordinary prose uses text formatting.
Part of the collection
Don't confuse it with
3
Cyrillic Capital Letter Soft Sign
Cyrillic capital soft sign, looks like a lowercase b in many fonts; a homoglyph used in spoofed text.
ｂ
Fullwidth Latin Small Letter B
Fullwidth Latin small b, a wide form that looks like a larger b and fails exact search for b.
Mathematical Sans-Serif Bold Italic Small B
Mathematical sans-serif bold italic small b, the same letter in italic sans bold; looks alike but won't match plain b.
Related characters
1
More like this
11
How to type or find 𝗯
- Search it as
- bold b · math b · math bold b · fancy b · sans serif b
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Windows (Word)
Windows
macOS
HTML
𝗯CSS
\1D5EFHTML/XML
Use
𝗯 where numeric character references are accepted.Codes and encoding1 code points
HTML decimal
𝗯
HTML hex
𝗯
CSS content
content: "\1D5EF";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9D%97%AF
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.