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Original Articles

A family of improved Jarratt multipoint methods

Pages 1027-1034 | Received 04 Jan 2006, Accepted 11 Feb 2007, Published online: 01 Aug 2007
 

Abstract

We derive a one-parameter family of sixth-order methods for solving equations which is based on the Jarratt fourth-order multipoint method. Further, we show that a particular choice of the parameter results in fifth-order convergence. Each member of the family requires two evaluations of the given function and two of its derivative per iteration. Numerical examples are presented and the performance is compared with the Jarratt method.

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