how can i get transferfunction for 4th order state equations

i need transfer function of state equations which is having $ variables in that Matrix

A= 4*4 matrix
B= 4*1 
C=1*4

so can i get inverse of 4*4 matrix in matlab

Answer 1

[Azzi Abdelmalek]

You can use inv function

inv(A)

But what this has to do with state space representation?