L33_ A
Chapter 6:Differentiable mappings(cont.)
(1)Convention: Df(x)(h)=Df(x)˙h
(2)Question
(3)Thm:Let A be an open set or a closed disk in R^n
L33_ B
Chapter 6:Differentiable mappings(cont.)
(1)Thm:Let A be an open set or a closed disk in R^n(cont.)
(2)Definiton:We sat f:A ⊂ R^n->R^m is diff on A,
if f is diff. at every point of A.
(3)Thm:(微分的四則運算)