Black-letter Capital R
Part of Math Symbols
Black-letter Capital R has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ℜ
- Unicode
- U+211C
About this symbol
ℜ, a black-letter R, stands for the real part of a complex number: ℜ(3 + 4i) is 3. Its partner ℑ gives the imaginary part. Many writers now prefer Re and Im.
Unicode facts
- Official name
- BLACK-LETTER CAPITAL R
- Also called
- Real part
- Type
- Uppercase letter
- Unicode block
- Letterlike Symbols
- Added in
- Unicode 1.1 (1993)
Click the symbol or any value at the top of the page to copy it. See the full Math Symbols chart for related characters.