Function of a Real Variable
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In mathematics, a function of a real variable is a mathematical function whose domain is the real line. More loosely, a function of a real variable is sometimes taken to mean any function whose domain is a subset of the real line. Functions of a real variable were the classical object of study in mathematical analysis, specifically real analysis. In that context, a function of a real variable was usually meant a real-valued function of a real variable, that is, a function whose domain and codomain were the real numbers. However, because of their convenience in fields such as Fourier analysis,…mehr

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Produktbeschreibung
In mathematics, a function of a real variable is a mathematical function whose domain is the real line. More loosely, a function of a real variable is sometimes taken to mean any function whose domain is a subset of the real line. Functions of a real variable were the classical object of study in mathematical analysis, specifically real analysis. In that context, a function of a real variable was usually meant a real-valued function of a real variable, that is, a function whose domain and codomain were the real numbers. However, because of their convenience in fields such as Fourier analysis, it was also common to consider complex functions of a real variable, that is, a function whose domain was the real numbers and whose range was the complex numbers.