Evaluate damping ratio bound on linear system
c = evalRequirement(req,lin_sys)
Linear system (tf, ss, zpk, frd, genss, or genfrd).
Evaluate damping ratio requirement.
req = sdo.requirements.PZDampingRatio; sys = tf(0.5,[1 3 3 1]); c = evalRequirement(req,sys);
c is negative, which indicates that the system satisfies the damping ratio requirement.