New approximations of some expressions involving trigonometric functions

Marija Nenezić, Branko Malešević and Cristinel Mortici

Applied Mathematics and Computation, 2016, vol. 283, issue C, 299-315

Abstract: The aim of this paper is to apply a computation method due to Malešević and Makragić (Malešević and Makragić, 2016) for approximating some trigonometric functions. Inequalities of Wilker–Cusa–Huygens are discussed, but the method can be successfully applied to a wide class of problems. In particular, we improve the estimates recently obtained by Mortici (Mortici, 2014) and moreover we show that they hold true also on some extended intervals.

Keywords: Wilker inequality; Trigonometric approximation (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:283:y:2016:i:c:p:299-315

DOI: 10.1016/j.amc.2016.02.035

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