Abstract
Recently, three computational algorithms for evaluating the determinant of quasi penta-diagonal matrices have been proposed by El-Mikkawy and Rahmo (Comput Math Appl 59:1386–1396, 2010), by Neossi Nguetchue and Abelman (Appl Math Comput 203:629–634, 2008), and by Jia et al. (Int J Comput Math 89:851–860, 2013), respectively. In the current paper, two novel algorithms with less computational costs are proposed for the determinant evaluation of general quasi penta-diagonal matrices and quasi penta-diagonal Toeplitz matrices. Furthermore, three numerical experiments are given to show the performance of our algorithms. All of the numerical computations were performed on a computer with aid of programs written in MATLAB.
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This work was supported by the Natural Science Foundation of China (NSFC) under Grant 11071192 and the International Science and Technology Cooperation Program of China under Grant 2010DFA14700.
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Jiang, YL., Jia, JT. On the determinant evaluation of quasi penta-diagonal matrices and quasi penta-diagonal Toeplitz matrices. J Math Chem 51, 2503–2513 (2013). https://doi.org/10.1007/s10910-013-0224-x
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DOI: https://doi.org/10.1007/s10910-013-0224-x