An identity related to Jordan's inequality
| Autor: | Jian-Lin Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | International Journal of Mathematics and Mathematical Sciences, Vol 2006 (2006) |
| Druh dokumentu: | article |
| ISSN: | 0161-1712 1687-0425 |
| DOI: | 10.1155/IJMMS/2006/76782 |
| Popis: | The main purpose of this note is to establish an identity which states that the function sinx/x is a power series of (π2−4x2) with positive coefficients for all x≠0. This enable us to obtain a much stronger Jordan's inequality than that obtained before. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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