Evaluation of Def 留数的引入 但反过来应用上式,就可能用来计算积分 ds 2Ti 特别是,当n=-1时Residue theorem Evaluation of Definite Integrals Residue theorem Some Applications of Residue Theorem Residue at Infinity 3êÚ\ L5A^þª§ÒU^5OÈ© I C f(ζ) (ζ − b) n+1dζ = 2πian AO´§n = −1 I C f(ζ)dζ = 2πia−1 3, ¹e§kU N´¦a−1 ùÒ´3ê½nÄ g C. S. Wu 1ù 3ê½n9ÙA^()