...here is differentiate a series of function term by term, but this is not valid for every series of functions. In fact, for term by term differentiation...
1. 設 t 時刻,m1(以m表示)向右x(t)單位, m2(以M表示)向右y(t)單位(三彈簧的彈性係數a,b,c),則 mx"= - ax- b(x-y) => mx"= -(a+b)x + by ----(A1) My"= - cy+b(x-y) => My"= bx - (b+c)y ----(A2) x(0)=0=y(0), x'(0)=v0, y'(0)=0 2. 矩陣A= [ -(a+b) b...