definite integral

基本解释

The improper integral is the limit state of the definite integral.
广义积分是定积分的极限状态；
This paper intends to give a new integral trapezoid formula by using the asymptotic feature of mean value theorem of differential to conclude the estimated formula of definite integral.
利用微分中值定理“中值点”的渐近性，给出一个新的积分梯形公式，由此得到定积分的估计式。
This article is to make students know and understand the dialectical relation in the calculus by teaching the definition of limit thought, differential coefficient and definite integral.
本文从极限思想、导数以及定积分概念教学中，引导学生认识和理解微积分中蕴涵的辩证关系。

the evaluation of the indefinite integral between two limits, representing the area between the given function and the x-axis between these two values of x
the expression for that function, (x)dx, where f(x) is the given function and x = a and x = b are the limits of integration. Where F(x) = f(x)dx, the indefinite integral, baf(x)dx = F(b)F(a)