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《Journal of Liaoning Institute of Technology》 1994-01
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A Family of Quasi Newton Method of Solving Non linear Equation Sets with Sparsity Kept

Ge Rendong  
Bogle and Perkins propose a quasi Newton method 1 based on a least relative change. The method retains the sparsity of secant updated matrixes. Martiner proposes a family of quasi Newton method 2 with direct secant updated matrix factorzation. This article combines the thoughts of the above two methods to present a family of new methods to solve non linear equation sets. Finally, a set of special example is analysed and the calculation result of the new methods given.
【CateGory Index】: O175.29
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