最有利 发表于 2025-3-23 13:22:54
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https://doi.org/10.1007/978-3-658-38821-8he point (.). Then intuitively it is clear that the function of a single variable .(..,.) must attain an extremum at .. = .. From Section 1.4 it is necessary that .. = 0 at .. = .. Similarly, since the function .(..) must also attain an extremum at .. = ., it is also necessary that .. = 0 at .. = ..Terminal 发表于 2025-3-24 11:39:57
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Book 1977se scientists such as economists, operations researchers, and en gineers whose main tools of analysis involve optimization techniques and who possess a (not very sharp) knowledge of one or one-and-a-half year‘s calculus through partial differentiation and Taylor‘s theorem and some acquaintance withMOTIF 发表于 2025-3-24 22:44:11
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