function matrixinfo(m)
% matrix_info(m)
% Tell the user whether mtx is a square matrix. If it is a square matrix, 
% display the matrix's transpose and inverse.

msize = size(m);
if ndims(m) == 2 && msize(1) == msize(2),
    disp('It''s a square matrix.');
    disp('The transpose is:');
    disp(m');
    disp('The inverse is:');
    disp(inv(m));
else
    disp('The matrix isn''t square.');
end % if
end % function