期刊
SIAM REVIEW
卷 45, 期 1, 页码 3-49出版社
SIAM PUBLICATIONS
DOI: 10.1137/S00361445024180
关键词
matrix; exponential; roundoff error; truncation error; condition
In principle, the exponential of a matrix could be computed in many ways. Methods involving approximation theory, differential equations, the matrix eigenvalues, and the matrix characteristic polynomial have been proposed. In practice, consideration of computational stability and efficiency indicates that some of the methods are preferable to others but that none are completely satisfactory. Most of this paper was originally published in 1978. An update, with a sepal-ate bibliography, describes a few recent developments.
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