[分析] 多變數連續可微性
f:R^n ---> R^m
Prove if df_i/dx_k (a) exists for every i,k
and df_i/dx_k is continuous,then f is total differentiable .
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※ 編輯: BrowningZen (218.102.77.110), 04/29/2016 19:12:15
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