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          |  | Volume 7, Issue 3, Article 102 |  |   
          |  |  |  |  |  |  | Sharpening of Jordan's Inequality and its Applications
 
 
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          |  |  | Authors: | Wei Dong Jiang, Hua Yun, |  |   
          |  |  | Keywords: | Jordan inequality, Yang Le inequality, Upper-lower bound. |  |   
          |  |  | Date Received: | 12/11/05 |  |   
          |  |  | Date Accepted: | 07/02/06 |  |   
          |  |  | Subject Codes: | Pri: 26A51, 26D07, 26D15. |  |   
          |  |  | Editors: | Peter S. Bullen, |  |   
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          |  |  | Abstract: |  In this paper,the following inequality:  is established. An application of this inequality gives an improvement of Yang Le's inequality. |   
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