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  1. Oxford American Dictionary

    identity matrix

    • IPA[īˈden(t)ədē ˈmātriks]
    • n.
      a square matrix in which all the elements of the principal diagonal are ones and all other elements are zeros. The effect of multiplying a given matrix by an identity matrix is to leave the given matrix unchanged.

    • noun: identity matrix, plural noun: identity matrices

    • 更多解釋

    identity matrix

    • n.
      a square matrix in which all the elements of the principal diagonal are ones and all other ...

    Oxford Dictionary