There are several methods of calculating the unknown coefficients appearing in the partial fraction expansion of a fraction of two polynomials. This paper shows how to derive a method based on standard results from the theory of complex variables, namely, the Cauchy-Goursat theorem and the Cauchy integral formula.
Peter Zhevandrov, Professor of Physics and Mathematics University, Michoacan Morelia, MEXICOpzhevand@zeus.umich.mx
Velazquez, Noe Ricardo Arellano
"Expansion into Partial Fractions,"
Rose-Hulman Undergraduate Mathematics Journal: Vol. 6
, Article 10.
Available at: http://scholar.rose-hulman.edu/rhumj/vol6/iss2/10