— Function File: sys = sysmult (Asys, Bsys)

Compute sys = Asys*Bsys (series connection):

          u   ----------     ----------
          --->|  Bsys  |---->|  Asys  |--->
          ----------     ----------

A warning occurs if there is direct feed-through from an input or a continuous state of Bsys, through a discrete output of Bsys, to a continuous state or output in Asys (system data structure does not recognize discrete inputs).