Want to divide the element into mesh and to get the data of nodes and elements. But its showing error

    if true
      % code
    end%Density_of_mesh = input('Enter the Mesh Density (max:5): ');
Density_of_mesh = 4;
Thickness_of_material = 1 ;% (mm)
Thickness = [5 10 5]; % thicknesses of the layers from bottom
len_width = [0 0 80] ;% width of layers ; TOTAL width = 80mm
thk_div = Density_of_mesh*[3 3 2] ;% no. of division for each layer
len_div = Density_of_mesh*8;         % no. of division along length

% Material Properties

youngs_Modulus = [200000 500 2200]; % for t1, t2, t3, t4, t4, t3, t3, t2, t1 resp. mu = 0.3 ; % poisson’s ratio for all materials

if true
  % code
end
%**************************************************************************
[CORD_OF_NODE, convty_elem, no_of_nodes, no_of_elem, el_mat_id] = mesh(Thickness,thk_div,len_width,len_div);

Error Error using mesh Too many output arguments.

Error in Assignment (line 24) [CORD_OF_NODE, convty_elem, no_of_nodes, no_of_elem, el_mat_id] = mesh(Thickness,thk_div,len_width,len_div);