Posted by haifeng on 2012-07-07 16:13:51 last update 2012-07-07 16:13:51 | Answers (0) | 收藏
证明:
\[\lim_{T\rightarrow+\infty}\frac{1}{\pi}\int_{-T}^{T}\frac{\sin jx}{x}dx=1.\]
References:
张恭庆 《泛函分析讲义》 P.174-175.
