finds the residue of expr at the point z=z0.
Details and Options
- The residue is defined as the coefficient of (z-z0)^-1 in the Laurent expansion of expr.
- The Wolfram Language can usually find residues at a point only when it can evaluate power series at that point.
Examplesopen allclose all
Illustrate Cauchy's theorem for the integral of a complex function:
Possible Issues (1)
Residues are not defined at branch points: