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单词
directional derivative
释义
WordReference Random House Unabridged Dictionary of American English © 2024
direc
′
tional deriv
′
ative,
[
Math.
]
Mathematics
the limit, as a function of several variables moving along a given line from one specified point to another on the line, of the difference in the functional values at the two points divided by the distance between the points.
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更新时间:2025/7/23 15:50:37