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单词
positive definite
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pos
′
itive def
′
inite,
[
Math.
]
Mathematics
(of a quadratic form) positive for all real values of the variables, where the values are not all zero.
Mathematics
(of a matrix) displaying the coefficients of a positive definite quadratic form.
1905–10
pos
′
itive def
′
initeness.
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更新时间:2025/11/27 7:42:02