Given the coefficients of the characteristic polynomial the Routh-Hurwitz array is created and printed. Additionally, this method shows some results from the array relating to the stability of the system.
How many of these do we need, especially since this is an academic exercise? There must be at least a half dozen of these on the FEX.
all(real(roots(p)))<0 returns true if the roots of the polynomial having coefficients in row vector p are in the left half plane.