运用欧拉公式求定积分

Seek Definite Integration with Euler Formula

被积函数中含有三角函数,对这种积分往往要用到很多三角公式,而且灵活多变,难记,本文试图用欧拉公式将三角函数转化为复变量指数函数求定积分,减少公式记忆,降低难度。

Many flexible and difficult to remember triangle formulas were used during integrated function containing trigonometry. To reduce formula memory and lower difficulty, this paper tried to transform trigonometry into complex variables exponential function to seek definite integral, by Euler formula.