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单词
principal submatrix
释义
principal submatrix
principal submatrix
[
¦prin·səpəl səb′ma·triks
]
(mathematics)
An
m
×
m
matrix,
P
, is an
m
×
m
principal submatrix of an
n
×
n
matrix,
A
, if
P
is obtained from
A
by removing any
n
-
m
rows and the same
n
-
m
columns.
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更新时间:2025/3/4 7:13:32