The integrand in this equation is quite complex.

这个方程中的被积函数相当复杂。

The integrand must be continuous over the interval.

被积函数必须在区间内连续。

We need to find the antiderivative of the integrand.

我们需要找到被积函数的反导数。

The integrand changes significantly within the given range.

在给定范围内，被积函数变化显著。

To solve the problem, you need to understand the integrand first.

要解决这个问题，你首先需要理解被积函数。

The integral range and the integrand structure are the two key points of the function integral.

积分区域和被积函数结构是函数积分的两个关键点。

The integration can be simplified calculated using symmetry if it has symmetric integral domain and its integrand has odd or even characteristic.

对称积分区域以及被积函数有与之相匹配的奇、偶性的积分，均可用对称性简便计算。

If the integrand is related to the top integral function in definite integral computation, the definite integral possesses the different expression from.

在定积分计算中，当被积函数与上取整函数有关时，会有不同的表达形式。

Based on the quality of linear operation about indefinite integral, the article puts forward an indefinite integral principle of making linear combination and reducing power of integrand.

从不定积分的线性运算性质出发，给出了计算不定积分的被积函数线性组合化、降幂的积分原则，并结合实例分析了这一原则在不定积分计算中的指导作用。

Again, remember that we're asking what function we differentiated to get the integrand.

同样，请记住，我们在问我们什么功能分化得到积。