# How to get intermediate variables in function solvetime

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 I call ex_navierstokes6 function to solve time-dependent flow around a cylinder and it works fine. However, I want to take out the assembled matrix (such as stiffness matrix, mass matrix, etc.) during the time step, but it is embedded in the FEA kernel. I can only see this line of code which call the embedding functions:  if ~(nargin||nargout),help mfilename,return,end,varargout=cell(1,nargout);[varargout{:}]=featool('feval','solvetime',varargin{:});if ~ nargout,clear varargout,end  Is there any way I can get these intermediate data? It is important for my research.