The '''residue calculus''' is a method of definite [[integration]] which relies heavily on [[Cauchy's residue theorem]]. The idea is to rewrite a definite integral on the [[real]] line as limit of integrals in the [[complex plane]] which are, in some sense, easier to compute. | The '''residue calculus''' is a method of definite [[integration]] which relies heavily on [[Cauchy's residue theorem]]. The idea is to rewrite a definite integral on the [[real]] line as limit of integrals in the [[complex plane]] which are, in some sense, easier to compute. |