What 𝐏 means
It is a mathematical P in bold type.
In some physics and applied-math conventions, bold letters stand for vectors. The formula and field tell you what this P represents.
Mathematical writing already used distinct letter styles. In 1998, a Unicode proposal argued that flattening bold and plain letters in text could scramble equations, and proposed separate characters to preserve the distinctions. The HTML form 𝐏 and JavaScript escape \u{1D40F} enter this P.
How do I type 𝐏?
Use an HTML numeric reference or a JavaScript code-point escape.
The braces let JavaScript use the full hexadecimal value in one escape; HTML numeric references also enter a character by its code point.
This is for mathematical or technical notation; format an ordinary P as text when you only need emphasis.
NFKC or NFKD can flatten 𝐏 to P and erase a mathematical distinction.
Part of the collection
Don't confuse it with
1
Questions people ask
1Why does 𝐏 turn into P?
Yes. NFKC or NFKD compatibility normalization can fold 𝐏 to plain P by removing its bold style. That can help broad text matching, but it erases the distinction when a formula relies on it.
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How to type or find 𝐏
- Search it as
- bold p · math p · unicode bold p · fancy p
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝐏\1D40F𝐏 as a hexadecimal numeric character reference.\u{1D40F}.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.