LinearSystems

Num is the nominator and den is the denominator of the original polynomial. Nz is the nominator and Dz is the denominator of the polynom to substitude the variable with in the original polynomial. The function returns modified num and den. Num and den must have the same length. Nz and Dz must have the same length. The advantage of this method is that rooting of the polynomials is not required. The resulting polynomial is normalized to have the coefficient for the highest power in the polynomial equal to 1.

Functions