residue
coefficient of the term of order −1 in the Laurent expansion of a function holomorphic outside a point, whose value can be extracted by a contour integral
en-GB/ˈɹɛsɪˌdjuː/
en-US/ˈɹɛzəˌdu/
coefficient of the term of order −1 in the Laurent expansion of a function holomorphic outside a point, whose value can be extracted by a contour integral