Description series connects two LTI models in series. This function accepts any type of LTI model. The two systems must be either both continuous or both discrete with identical sample time.
Static gains are neutral and can be specified as regular matrices.
The index vectors outputs1 and inputs2 indicate which outputs of sys1 and which inputs of sys2 should be connected. The resulting model sys has as input and as output. Example Consider a state-space system sys1 with five inputs and four outputs and another system sys2 with tw o inputs and three outputs.