以积分表示函数列的有限和

To Express the Finite Sum of a Function Sequence with an Integral

对通项为连续可微函数的函数列，给出了其有限和的精确积分表示；可用于任意精度要求的近似计算．

An exact integral expression of finite sum of sequence of a continuously differentiable function has been given, which can be used in approximate calculation with arbitrary accuracy.