单词	identity matrix
释义	identity matrix noun : a square matrix that has numeral 1's along the principal diagonal and 0's elsewhere Example Sentences Recent Examples on the Web For example, the identity element in the group must be assigned the identity matrix. Quanta Magazine, 9 June 2020 Word History First Known Use 1908, in the meaning defined above
随便看	grapple fork grapple plant grapple shot grapple with grappled grappled (with) grappled with grappler grapplers grapples grapples (with) grapples with grappling grappling (with) grappling hook grappling with grapplings grapsid Grapsidae grapsoid Grapsus graptolite graptolites Graptolithida Graptolithina

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