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    %% Expansion with Numerator Degree Greater Than Denominator Degree
% When the degree of the numerator is greater than the degree of the
% denominator, the output |k| is a vector that represents the coefficients of a
% polynomial in _s_.
% 
% Perfom the following partial fraction expansion of _F_(_s_) using |residue|.
% 
% $$F(s) = \frac{b(s)}{a(s)} = \frac{2s^4+s}{s^2+1} = \frac{0.5-1i}{s-1i} + \frac{0.5+1i}{s+1i} + 2s^2-2.$$
% 

% Copyright 2015 The MathWorks, Inc.

b = [2 0 0 1 0];
a = [1 0 1];
[r,p,k] = residue(b,a)
%%
% |k| represents the polynomial $2s^2-2$.