Accelerazione della convergenza per metodi di risoluzione di equazioni differenziali ordinarie |
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Authors: | A M Urbani |
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Affiliation: | 1. Istituto per le Applicazioni del calcolo (I.A.C., Roma) del C.N.R., Roma, Italia
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Abstract: | In this paper a procedure for the acceleration of the convergence is given. It allows the doubling of the order of the multistep methods for the numerical solution of the ordinary differential equation $$y' = f(x,y),y_0 = y(x_0 );{}_{x_0 }^x \in a,b].$$ This acceleration is applicable to any method of orderp≥1 whatsoever, and it requires the evaluation of the globalp-th derivate of the functionf(x, y). Special attention is confined to the 20 and 30 order methods, and a numerical exemple is provided. |
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