在無窮遠處消失
參見
    
- 無窮
 - 根 (數學)
 
參考文獻
    
- . Math Vault. 2019-08-01 [2019-12-15]. (原始内容存档于2020-02-07) (美国英语).
 
書目
    
- Hewitt, E and Stromberg, K. . Springer-Verlag. 1963.
 
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