Explicit formulas related to Euler's product expansion for cosine function
| Autor: | Kim, Taekyun, Kim, Dae San |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | In this paper, we derive by using elementary methods some continued fractions, certain identities involving derivatives of tanx, several expressions for log coshx and an identity for {\pi}2, from a series expansion of tan x, which gives the product expansion of the cosine function. Comment: 13 pages |
| Databáze: | arXiv |
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