Function of a real variable
- 实函数（实函数（Real function），指定义域和值域均为实数域的函数。实函数的特性之一是可以在坐标上画出图形）
Function of a real variable
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abstract:
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.
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WordNet