| Symbol | Format | Data |
|---|---|---|
| ℝ | Code Point |
U+211D |
| TeX |
\reals |
|
| SVG |
The set of real numbers symbol is the Latin capital letter “R” presented with a double-struck typeface. The symbol is used in math to represent the set of real numbers. Typically, the symbol is used in an expression like this:
In plain language, the expression above means that the variable is a member of the set of real numbers.
The capital Latin letter R is used in mathematics to represent the set of real numbers. Usually, the letter is presented with a "double-struck" typeface when it is used to represent the set of real numbers.
The set of natural numbers symbol (ℕ) is used in math to represent the natural numbers: 1, 2, 3, ...
The set of integers is represented by the ℤ symbol.
The set of rational numbers is denoted with the Latin Capital letter Q presented in a double-struck typeface.
The set of complex numbers is represented by the Latin capital letter C. The symbol is often presented with a double-struck font face just as with other number sets. The set of complex numbers extends the real numbers.