in a numerical simulation system , a method for displaying information includes the steps of generating output data of values which are dependent on at least one of coefficients and constants of a discretization equation at each mesh point , based on positions of the mesh points representing the analysis domain and having the partial differential equation defined therefor and simultaneous linear equations constructed by the discretization equations which are approximation equations of the partial differential equations ; displaying the analysis domain on a display ; and changing the display status of the display screen at the point corresponding to the mesh point depending on the output data at the mesh point .