Bekir, Esmat2021-11-302021-11-302019-06-30http://hdl.handle.net/20.500.12575/76512This paper presents economized power series for trigonometric and hyperbolic functions. It determines the smallest range over which a function need to be computed and scales the Chebyshev polynomials accordingly. Thus reduced degree polynomials (and hence reduced computations) can be obtained while maintaining the same accuracy as those unscaled higher degree polynomials.enChebyshev polynomialEconomizationTrigonometric functionsArticle69233562618-6470