H-infinity norm
[hinfnorm, frequency] = h_norm(sl) [hinfnorm, frequency] = h_norm(sl, rerr)
the state space system (syslin
list)
max. relative error, default value 1e-8
the infinity norm of Sl
frequency at which maximum is achieved
produces the infinity norm of a state-space system (the maximum over all frequencies of the maximum singular value).