Resumo

IGLESIAS, Omar A.  e  PETRYLA, Estanislao J.. Aumento de la Velocidad de Convergencia del Sistema de Rachford-Rice: Improvement of The Rachford-Rice System Convergence Rate. Rev. cienc. tecnol. [online]. 2009, n.11, pp.09-13. ISSN 1851-7587.

The Regula-Falsi method to solve the equation f (x) = 0 is very adecuate when in the two first iterates x0 and x1, f (x) have opposite signs. Howewer, in some cases, the convergence of this method can be very slow, specially when i) the images through f of the extreme points of the search interval differ, at least, in one order of magnitude; ii) in the zone where f (x) is smaller, f (x) ˜ 0 and iii) the root of f (x) is approximately in the mean of the search interval. For this cases, in this paper we propose a convergence accelerator function, wich is then used to calculate a adiabatic flash, where are present the characterisitcs of f mentioned above.

Palavras-chave : Regula-Falsi; Convergence; Adiabatic flash; Optimization.

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