What 𝓟 means
The formula defines its meaning. Bold script is a separate math alphabet, not bold formatting on Latin P. Authors define the letter's role in each formula.
A 1999 Unicode proposal documents existing use of styled alphabets and seeks distinct characters to preserve meaning in searchable plain-text formulas.
NFKC maps 𝓟 to ordinary P because it is Unicode's compatibility cleanup. That cleanup erases a mathematical distinction.
In formulas, style distinguishes symbols; in prose, style the ordinary letter.
NFKC can fold 𝓟 to P; search or speech tools may treat them differently.
Part of the collection
Don't confuse it with
4


Questions people ask
1Why does 𝓟 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.
How to type or find 𝓟
- Also called
- bold script P
- Search it as
- p · script · calligraphic · bold · math
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝓟\1D4DFCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.


