应用留数定理计算一类实积分

Calculate a Class Real Integrals by Using Residue Theorem

应用留数定理,通过构造被积函数,将一类实积分的计算问题转化为求留数的计算,得到求此类问题的一种解法.

Using residue theorem and constructing an multiplicand function, we transform the calculate of real integrals in to the calculation of residue, and obtain a rather universal approach to calculate this of problems.