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.

Author Bio

I studied at the School of Physics and Mathematics of The University of Michoacan, located in Morelia, Michoacan, Mexico. I like physics and mathematics very very much and would like to obtain a PhD in order to do research. If I had not studied mathematics and science, I would have been a soccer player, because I love soccer and I used to played very much. I also like rock music in English from fifties to seventies, so I would love to live in the USA.