Residue calculation is a technique used in complex analysis to find the values of integrals around singular points of complex functions. This method allows for the evaluation of complex integrals by relating them to the residues of the function at its poles, which are the points where the function fails to be analytic. By applying the residue theorem, residue calculations become essential in various applications, including those in physics, where they help solve problems involving wave functions and field theories.
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