| 单词 | Real Line | 
| 释义 | Real Line![]() A Line with a fixed scale so that every Real Number corresponds to a unique Point on theLine. The generalization of the real line to 2-D is called the Complex Plane. See also Abscissa, Complex Plane
 Courant, R. and Robbins, H.  What is Mathematics?: An Elementary Approach to Ideas and Methods, 2nd ed.  Oxford, England: Oxford University Press, p. 57, 1996.  | 
	
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