I try to understand the 'arbitrary' what does it meant? I had read many references ,such a one it is 'begin the process with a transfer function of your choice' ,in other reference :related by the starting point,
In other hand i read about Chebyshev approximation with arbitrary magnitude, how can i find the better design with arbitrary magnitude ? any method of design have a criteria ,the 'arbitrary' related by the method of design or related by the transfer function?