What 𝒫 means
Math notation can give letter styles distinct meanings. Calligraphic letters were already used in formulas before Unicode. A 1999 proposal sought separate text characters for mathematical alphabets, so plain text could preserve distinctions that typography alone might lose.
The Unicode chart does not prescribe one exact drawing: different mathematical fonts can give script letters such as 𝒫 different calligraphic shapes.
Mathematical notation; the calligraphic style can distinguish it from plain P.
Part of the collection
What it means when someone sends it to you
2 readingsThe power set of A: every subset of A.
Don't confuse it with
1
Related characters
1
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.
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11
How to type or find 𝒫
- Search it as
- mathcal p · script p · calligraphic p · power set · fancy p
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝒫\1D4AB\mathcal{P} in math mode; this typesets the style but may not insert Unicode 𝒫 as text.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.