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Domain

(1) In analysis, the domain of a function is the set of values for which a function is defined. (2) In topology, a domain is a connected, open set.

Domain is a high school-level concept that would be first encountered in a pre-calculus course covering functions. It is listed in the California State Standards for Algebra I.

Prerequisites

Function:

A function is a relation that uniquely associates members of one set with members of another set. The term "function" is sometimes implicitly understood to mean continuous function, linear function, or function into the complex numbers.

Classroom Articles on Functions

Inverse Function

Range

Classroom Articles on Pre-Calculus (Up to High School Level)

	Asymptote	Natural Logarithm
	Complex Conjugate	Normal Vector
	Complex Number	Parabola
	Complex Plane	Parametric Equations
	Conic Section	Plane
	Cross Product	Plane Curve
	Curve	Polar Coordinates
	Determinant	Rational Function
	Dot Product	Reflection
	e	Rotation
	Ellipse	Rotation Matrix
	Exponential Function	Scalar
	Hyperbola	Spherical Coordinates
	i	Tangent Line
	Imaginary Number	Translation
	Locus	Vector
	Logarithm