Home/Differential Calculus/Domain, range and image/Formula1.2. Domain, range and imageFormulaIn 1.2. Domain, range and imageFormulaCopy LaTeXDom(f)={x∈R:f(x) is defined}\operatorname{Dom}(f)=\{x\in\mathbb{R}: f(x)\text{ is defined}\}Dom(f)={x∈R:f(x) is defined}TagsDifferential calculusDomainFunctionsNotationDomain, range and imagedomain restrictionDetailNatural domain of a real function.VariablesxxxIndependent variablefffFunctionFound an error? Contact us.Related formulasRelatedFormulaIm(f)={f(x):x∈Dom(f)}\operatorname{Im}(f)=\{f(x): x\in\operatorname{Dom}(f)\}Im(f)={f(x):x∈Dom(f)}Open formulaOpen in section