凹性與凸性 - 經濟
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By Anthony
at 2007-10-16T20:19
at 2007-10-16T20:19
Table of Contents
若Hessian為N.D(負定) , 則表示此為convex or concave?
若Hessian為P.D(正定) , 則表示此為convex or concave?
一個函數為convex or concave 可用Hessian來判斷嗎? Why?
找不到相關的說明
謝謝指教!!
補問一個問題...
為什麼convex = concave function?
而 concave= convex function?
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