Colon Symbol

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Symbol Format Data
: Code Point
U+003A
TeX
:
SVG
All symbols

Usage

In math, the colon symbol has several uses, depending on the context:

  1. In set theory, the colon symbol is used to represent a “such that” statement. Typically, the symbol is used in an expression like this one, which defines the set of complex numbers:

    In plain language, this means “the set of elements in the form such that and belong to the set of real numbers and ”.

  2. In algebra, the colon symbol is used to represent a ratio. Typically, the symbol appears in an expression like this:

    In plain language, this means the ratio of to .

Related

semi colon

The semi colon symbol is used in programming languages as a line terminator.

Links

Such That

The colon symbol is used in math to denote a condition for a statement. The symbol can be read as "such that" in a math expression.