Abstr: This paper gave the integral region symmetry and simplified the parity of integrand definite integral, double integral and triple integral calculations, which were verified through an example.
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。
In the calculation of defining and double integral, appropriately making use of the odevity of integrand and the symmetry of integral region can simplify the calculation of integral.
在定积分和重积分的计算中,恰当地利用被积函数的奇偶性和积分区域的对称性,可以使积分运算大大简化。
The integrand includes a multiplying factor of the vertical directivity of the noise intensity, and the layered ocean environment affects the spatial coherences via this directivity factor.
The integrand exhibits slowly convergence and highly oscillatory, which leads to difficulties when attempting to evaluate the impedance matrix elements.
计算阻抗矩阵元素时,由于被积函数振蕩性很强,收敛慢,难于计算。
Recalling that since all we are asking here is what function did we differentiate to get the integrand the second integral could also be, Traditionally we use the first form of this integral.
If you remember that all we're asking is what did we differentiate to get the integrand this is pretty simple, but it does seem to cause problems on occasion.
如果你还记得我们的所有要求是什么,我们得到的积区分这是很简单,但它有时似乎导致的问题。
It is based on the properties about the path of integration and the integrand function.
根据积分路径和被积函数的特点,讨论了相应的计算复积分的方法。
The limit of the integrand f ( x ) of abnormal integral, which is convergent in the infinite range of integration, is not certainly equal zero at infinity.