Decimal
Hex
Entity
Symbol
Description
ℑ
ℑ
ℑ
Blackletter capital I, imaginary part
℘
℘
℘
Script capital P, power set
ℜ
ℜ
ℜ
Blackletter capital R, real part
™
™
™
?
Trademark sign
ℵ
ℵ
ℵ
Alef symbol, or first transfinite cardinal