REGION OF ABSOLUTE STABILITY OF AN ORDER 19 RATIONAL INTEGRATOR
Journal: Asian Journal of Natural and Applied Sciences (Vol.5, No. 2)Publication Date: 2016-06-15
Authors : U.S.U. Aashikpelokhai; L. A. Ukpebor;
Page : 27-47
Keywords : Rational integrator; stiff; singular and oscillatory problems; stability function and Region of Absolute Stability (RAS);
Abstract
In this research, the Region of Absolute Stability (RAS) of an order 19 - rational integrator is presented. The analysis covers the coefficient parameters of the u – v form and (R,θ)polar form of the stability function.The polar form is conducted and studiedthrough polar curves that enable us to determine the RAS of the integrator. We carried out relevant tests experimentally.
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