Double-struck Capital C
Part of Math Symbols
Double-struck Capital C has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ℂ
- Unicode
- U+2102
About this symbol
ℂ is the set of complex numbers, which add the square root of −1, written i, to the real numbers. They are essential in electrical engineering and quantum physics.
Unicode facts
- Official name
- DOUBLE-STRUCK CAPITAL C
- Also called
- The set of complex numbers
- 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.