What 𝑤 means
A variable: the formula defines the quantity it names.
In mathematical notation, italic Latin letters commonly stand for single-letter variables. The surrounding formula gives 𝑤 its role and value.
A broader convention took shape in early modern algebra: Descartes's La Géométrie (1637) used italic lowercase x, y, and z for unknowns, helping establish the style for variables. This character carries that mathematical style directly in plain text.
Is 𝑤 just an italic w?
It is a separate character, though it can look like styled w.
In a typeset equation, markup can pair ordinary w with a math-italic instruction to express the same mathematical token. This character carries the letter and math style together in plain text.
Unicode reserves mathematical alphanumeric characters for math or technical notation. For emphasis in ordinary prose, italic formatting on regular w is the appropriate choice.
Part of the collection
Don't confuse it with
1
Questions people ask
2Why does 𝑤 become a plain w?
Compatibility normalization. Unicode's NFKC form folds math-style letters to base letters, so 𝑤 becomes plain w. This can help text matching but removes the mathematical-style distinction.
Why is 𝑤 a box?
The active font may not include this glyph. A math-capable font with support for mathematical alphanumeric characters can render it.
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11
How to type or find 𝑤
- Search it as
- w · variable · equation · formula · italic
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝑤\1D464Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.