带有绝对值函数的积分方法

A integral method of the function with absolute value

讨论了形如｜ｆ（ｘ）｜，ｆ（｜ｘ｜）。

A solution for both definite and indefinite integrals in the forms of |f(x)|, f(|x|), and |f(|x|)| has been introduced.