\colonThe \colon symbol is used in LaTeX to denote a colon, often used in mathematical expressions to define mappings or ratios. It is distinct from the regular colon ':' as it provides proper spacing in mathematical contexts.
Defines a function f from set X to set Y
f \colon X \to YRepresents a ratio of a to b
a \colon bDescribes a sequence of ratios
\text{Ratio} \colon a \colon b \colon c