Inverse is the inert form of inverse.
Inverse takes as argument a matrix with coefficients in ℤ/pℤ.
Inverse returns inverse without evaluation. It is used in conjunction with mod in Maple syntax mode to find the inverse of a matrix with coefficients in ℤ/pℤ.
Input in Xcas mode :
you need to eval(ans()) to get :
which is the inverse of A=[[1,2,9],[3,10,0],[3,11,1]] in ℤ/13ℤ.
Input in Maple mode :