>> B = [0-7.57i, 0+3.33i, 0+0.00i, 0+3.33i, 0-1.36i;...
0+3.33i, 0-16.66i, 0+3.33i, 0+10.i, 0.00+0.i;...
0+0.00i, 0+3.33i, 0-7.71i, 0+3.33i, 0.41-1.52i;...
0+3.33i, 0+10.i, 0+3.33i, -17.66+0.i, -0.90-1.20i];
>> size(B)
ans =
4 5
So the matrix is clearly not square. And yet the matrix inverse operation is only defined for square matrices: "inv(X) returns the inverse of the square matrix X" states the documentation clearly.
Every source you will care to look at will tell you that a matrix must be square to be invertable: "In linear algebra, an n-by-n square matrix A is called invertible..."
