| 单词 | fundamental matrix |
| 释义 | > as lemmasfundamental matrix fundamental matrix n. Mathematics †(a) a matrix considered in relation to those obtained by rearranging and/or deleting one or more of its rows or columns (obsolete rare); (b) a matrix whose columns are linearly independent solutions of a system of homogeneous linear ordinary differential equations. ΚΠ 1913 C. E. Cullis Matrices & Determinoids I. iv. 86 Any matrix (or any determinoid) will be called a fundamental matrix (or a fundamental determinoid) with respect to the derived matrices and the derived determinoids belonging to it. 1925 Amer. Jrnl. Math. 47 106 (header) The Fundamental Matrix and Its Properties. 1971 Trans. Amer. Math. Soc. 154 438 These solutions, written consecutively in columns, form the fundamental matrix. 2012 W. A. Adkins & M. G. Davidson Ordinary Differential Equations ix. 713 Computing a fundamental matrix is not always an easy task. < as lemmas |
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