What 𝘶 means
It is a Latin u in a mathematical letter style.
In a formula, a letter can stand for a quantity, object, or label. The writer’s definitions tell you which.
Why is its style encoded separately?
Because mathematical styles can distinguish symbols.
By 1999, styled alphabets were used in scientific and technical publishing. Unicode proposals gave them separate characters so plain-text formulas could preserve those distinctions.
Part of the collection
Don't confuse it with
1
Combination ideas
1Example assignment: 𝘶 has value three.
Questions people ask
1Why does 𝘶 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
13
uLatin Small Letter U𝘜Mathematical Sans-Serif Italic Capital U𝙪Mathematical Sans-Serif Bold Italic Small U𝚞Mathematical Monospace Small U𝘂Mathematical Sans-Serif Bold Small U𝘴Mathematical Sans-Serif Italic Small S𝘵Mathematical Sans-Serif Italic Small T𝘷Mathematical Sans-Serif Italic Small V
µMicro SignʹGreek Numeral Sign
ـArabic Tatweel℀Account Of℁Addressed To The SubjectHow to type or find 𝘶
- Search it as
- fancy · stylized · unicode · text · letter
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Windows (Word)
Windows
macOS
HTML
𝘶CSS
\1D636HTML/XML
Enter the numeric character reference 𝘶 in HTML or XML.
Codes and encoding1 code points
HTML decimal
𝘶
HTML hex
𝘶
CSS content
content: "\1D636";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9D%98%B6
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.