Improved Newton's method with exact line searches to solve quadratic matrix equation

  • Authors:
  • Jian-hui Long;Xi-yan Hu;Lei Zhang

  • Affiliations:
  • College of Mathematics and Econometrics, Hunan University, Changsha 410082, China;College of Mathematics and Econometrics, Hunan University, Changsha 410082, China;College of Mathematics and Econometrics, Hunan University, Changsha 410082, China

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2008

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Abstract

In this paper, we study the matrix equation AX^2+BX+C=0, where A,B and C are square matrices. We give two improved algorithms which are better than Newton's method with exact line searches to calculate the solution. Some numerical examples are reported to illustrate our algorithms.