简介:Basedontheworkofpaper,weproposeamodifiedLevenberg-MarquardtalgoithmforsolvingsingularsystemofnonlinearequationsF(x)=0,whereF(x):R^n→R^niscontinuouslydifferentiableandF'(x)isLipschitzcontinuous.Thealgorithmisequivalenttoatrustregionalgorithminsomesense,andtheglobalconvergenceresultisgiven.Thesequencegeneratedbythealgorithmconvergestothesolutionquadratically,if||F(x)||2providesalocalerrorboundforthesystemofnonlinearequations.Numericalresultsshowthatthealgorithmperformswell.