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A domain is an open connected set in mathematics.

A domain is the set of points where a mathematical function is defined. When the function is a function of a complex variable, a domain is usually an open connected set.

Domains are useful in many fields of mathematics, including the study of [[analytic]] and [[harmonic functions]].

Domains are useful in many fields of mathematics, including the study of [[analytic]] and [[harmonic functions]].

[[category:mathematics]]

[[category:mathematics]]