% Chapter 8: Example 8.2
%            Calculation of Butterworth Ha(s) given |Ha(jW)|
%
N = 3; OmegaC = 0.5;
[b,a] = u_buttap(N,OmegaC);
[C,B,A] = sdir2cas(b,a)
%%C = 0.1250
%%B = 0     0     1
%%A = 1.0000    0.5000    0.2500
%%         0    1.0000    0.5000