ex10_12.m

Programs for the book Advanced Engineering Mathematics using MATLAB, 2ndEd.

%EX10_12.M Compute the inverse z-transform by partial fraction
% expansion for Y(z)/z = 0.1z/(z^2-1.9z+0.9)
%
clear
num=[0.1 0]               % Numerator   0.1z
den=[1.0 -1.9 0.9]        % Denominator z^2-1.9z+0.9
[K,Z,p]=residue(num,den)  % K coefficients, Z roots