导数dy/dx的物理意义

The Physical Paraphrase of Derivative dy/dx

引进“参照运动”这一新概念 ,以函数 Y=x3+c为例 ,说明 dydx是严格的数学意义上的 dydx=00 ,而其物理意义则是严格的“即时速度”,并以此为基础 ,说明微分积分的物理意义。

A New concept of ′reference movement′ is introducal in to explain that d\%y\%d\%x\% is d\%y\%d\%x\%=00 in the strict mathematical paraphrase and the strict ′instant velocity′ in physical paraphrase by taking function \%Y=x\+3+c\% as an instance. On this basis, the physical meaning of diferential integration is expounded.