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单词 submatrix
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submatrix
submatrix n.
Brit. /ˈsʌbˌmeɪtrɪks/
,
U.S. /ˈsəbˌmeɪtrɪks/
ΘΚΠ
the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > array > matrix
matrix1850
unit matrix1861
adjugate1882
adjoint1889
submatrix1903
identity matrix1908
row matrix1936
transpose1937
singular matrix1964
1903 Amer. Math. Monthly Mar. 68 Call first submatrix of Δ the matrix obtained by cutting off the first column and the first and last rows of Δ.
1970 G. K. Woodgate Elem. Atomic Struct. viii. 152 The matrix of H′ which has to be diagonalized breaks up into submatrices of given M.
2007 Ann. Statistics 35 2371 Suppose the relevant submatrix of the hat matrix, the one that is related to the active variables, has a high conditional number.
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