— Function File: out = ltifr (a, b, w)
— Function File: out = ltifr (sys, w)

Linear time invariant frequency response of single-input systems.

Inputs

a

b

coefficient matrices of dx/dt = A x + B u

sys

system data structure

w

vector of frequencies

Output

out

frequency response, that is:

          -1
          G(s) = (jw I-A) B

for complex frequencies s = jw.