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What is a function? That’s the question we answer in this chapter. We’ll define function, discuss its domain and codmain, and the range of a function. We’ll also introduce you to some very important functions in mathematics—characteristic functions and step functions. In the spotlight The Definition of Function we give a brief history of the origin of the function definition.

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Functions, Domain, and Range

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  • 发表日期：

    2026年

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  • Ulrich Daepp,
  • Pamela Gorkin

摘要

What is a function? That’s the question we answer in this chapter. We’ll define function, discuss its domain and codmain, and the range of a function. We’ll also introduce you to some very important functions in mathematics—characteristic functions and step functions. In the spotlight The Definition of Function we give a brief history of the origin of the function definition.