微分学很有用

Derivative and Differential Are Very Useful

高等数学核心内容是微积分学,学习微分学以后可以帮助我们掌握很多技能,例如可以求非均匀变化量的瞬时变化率、可以求各种方程根的近似值、可以求函数的极值和最值、可以精准地画出函数的图像、可以计算近似增量、可以利用函数的幂级数展开式求非幂函数初等函数的函数近似值等.

Derivative and differential are the core contents of the Higher Mathematics.We can master lots of skills after learning them.For example,we can find the instantaneous rate of change for a variable of nonuniform variation,find the roots of an equation,and calculate the extremal values of a function,the image of a function,and approximations of values of a function by using power series.We must pay attention to cultivate students＇ various professional skills in our teaching practice.