Colon
:
Type it
| Unicode | U+003A | |
|---|---|---|
| LaTeX | \colon | |
| HTML entity | : | |
| Character | : |
Meaning
Separates a function's name from its domain and codomain. In set-builder notation it can mean "such that", and between two numbers it can express a ratio. Compare with Right Arrow and Vertical Bar.
How to read it
f: ℝ → ℝ
is read “f is a function from the real numbers to the real numbers”.