How to store arrays from this for loop and merge them to be displayed on an App Designer Table?

Hello, I am trying to make a 3x3 Gaussian-Seidel calculator, I'm having a problem trying to store the array of the rows and columns so it can be displayed on an App Designer Table. The table will be measured by iteration, then the values for each iteration will be displayed.

classdef LE4 < matlab.apps.AppBase
    
    % Properties that correspond to app components
    properties (Access = public)
        UIFigure            matlab.ui.Figure
        UITable             matlab.ui.control.Table
        D1                  matlab.ui.control.NumericEditField
        D3                  matlab.ui.control.NumericEditField
        D2                  matlab.ui.control.NumericEditField
        X31                 matlab.ui.control.NumericEditField
        X33                 matlab.ui.control.NumericEditField
        X32                 matlab.ui.control.NumericEditField
        X21                 matlab.ui.control.NumericEditField
        X23                 matlab.ui.control.NumericEditField
        X22                 matlab.ui.control.NumericEditField
        X13                 matlab.ui.control.NumericEditField
        X12                 matlab.ui.control.NumericEditField
        LABEL_RESULT        matlab.ui.control.Label
        LABEL_Columns       matlab.ui.control.Label
        LABEL_ROWS          matlab.ui.control.Label
        LABEL_INSTRUCTIONS  matlab.ui.control.Label
        LABEL_DETERMINANT   matlab.ui.control.Label
        LABEL_CREDITS2      matlab.ui.control.Label
        LABEL_CREDITS       matlab.ui.control.Label
        LABEL_PROGRAMNAME   matlab.ui.control.Label
        CalculateButton     matlab.ui.control.Button
        X11                 matlab.ui.control.NumericEditField
    end
    
    % Callbacks that handle component events
    methods (Access = private)
        
        % Button pushed function: CalculateButton
        function CalculateButtonPushed(app, event)
            clc
            A = [app.X11.Value app.X12.Value app.X13.Value;app.X21.Value app.X22.Value app.X23.Value;app.X31.Value app.X32.Value app.X33.Value];
            b = [app.D1.Value app.D2.Value app.D3.Value]';
            x = [0 0 0]';
            n=size(x,1);
            normVal=Inf; 
            tol=1e-5; itr=0;
            
            while normVal>tol
                x_old=x;
                for i=1:n sigma=0;
                    for j=1:i-1 sigma=sigma+A(i,j)*x(j);
                    end
                    for j=i+1:n sigma=sigma+A(i,j)*x_old(j);
                    end
                    
                    x(i)=(1/A(i,i))*(b(i)-sigma);
                end
                
                itr=itr+1;
                normVal=norm(x_old-x);
                tdata=app.UITable
                tdata = table(itr, A:1, A:2, A:3),'VariableNames',{'K','X1','X2','X3'};
                
                %app.UITable.Data = itr, x(:,1), x(:,2), X(:,3)
                fprintf('Solution of the system is : \n%f \n%f \n%f \n%f in %d iterations',x,itr);
            end
            
        end
    end
    
    % Component initialization
    methods (Access = private)
        
        % Create UIFigure and components
        function createComponents(app)
            
            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'MATLAB App';
            
            % Create X11
            app.X11 = uieditfield(app.UIFigure, 'numeric');
            app.X11.Position = [70 346 26 22];
            
            % Create CalculateButton
            app.CalculateButton = uibutton(app.UIFigure, 'push');
            app.CalculateButton.ButtonPushedFcn = createCallbackFcn(app, @CalculateButtonPushed, true);
            app.CalculateButton.Position = [104 230 100 22];
            app.CalculateButton.Text = 'Calculate';
            
            % Create LABEL_PROGRAMNAME
            app.LABEL_PROGRAMNAME = uilabel(app.UIFigure);
            app.LABEL_PROGRAMNAME.HorizontalAlignment = 'right';
            app.LABEL_PROGRAMNAME.Position = [28 447 250 22];
            app.LABEL_PROGRAMNAME.Text = '3x3 Gauss-Seidel Calculator (Constants only)';
            
            % Create LABEL_CREDITS
            app.LABEL_CREDITS = uilabel(app.UIFigure);
            app.LABEL_CREDITS.HorizontalAlignment = 'right';
            app.LABEL_CREDITS.Position = [218 34 137 22];
            app.LABEL_CREDITS.Text = 'A program presented by:';
            
            % Create LABEL_CREDITS2
            app.LABEL_CREDITS2 = uilabel(app.UIFigure);
            app.LABEL_CREDITS2.HorizontalAlignment = 'right';
            app.LABEL_CREDITS2.Position = [218 13 212 22];
            app.LABEL_CREDITS2.Text = 'Dablo, Peralta, Pontejo, Tero, Villegas.';
            
            % Create LABEL_DETERMINANT
            app.LABEL_DETERMINANT = uilabel(app.UIFigure);
            app.LABEL_DETERMINANT.HorizontalAlignment = 'right';
            app.LABEL_DETERMINANT.Position = [195 367 71 22];
            app.LABEL_DETERMINANT.Text = 'Determinant';
            
            % Create LABEL_INSTRUCTIONS
            app.LABEL_INSTRUCTIONS = uilabel(app.UIFigure);
            app.LABEL_INSTRUCTIONS.HorizontalAlignment = 'right';
            app.LABEL_INSTRUCTIONS.Position = [34 401 240 22];
            app.LABEL_INSTRUCTIONS.Text = 'Please input the required value for the table';
            
            % Create LABEL_ROWS
            app.LABEL_ROWS = uilabel(app.UIFigure);
            app.LABEL_ROWS.HorizontalAlignment = 'right';
            app.LABEL_ROWS.Position = [10 346 49 22];
            app.LABEL_ROWS.Text = 'M Rows';
            
            % Create LABEL_Columns
            app.LABEL_Columns = uilabel(app.UIFigure);
            app.LABEL_Columns.HorizontalAlignment = 'right';
            app.LABEL_Columns.Position = [50 367 65 22];
            app.LABEL_Columns.Text = 'N Columns';
            
            % Create LABEL_RESULT
            app.LABEL_RESULT = uilabel(app.UIFigure);
            app.LABEL_RESULT.HorizontalAlignment = 'right';
            app.LABEL_RESULT.Position = [293 447 40 22];
            app.LABEL_RESULT.Text = 'Result';
            
            % Create X12
            app.X12 = uieditfield(app.UIFigure, 'numeric');
            app.X12.Position = [70 312 26 22];
            
            % Create X13
            app.X13 = uieditfield(app.UIFigure, 'numeric');
            app.X13.Position = [70 278 26 22];
            
            % Create X22
            app.X22 = uieditfield(app.UIFigure, 'numeric');
            app.X22.Position = [114 312 26 22];
            
            % Create X23
            app.X23 = uieditfield(app.UIFigure, 'numeric');
            app.X23.Position = [114 278 26 22];
            
            % Create X21
            app.X21 = uieditfield(app.UIFigure, 'numeric');
            app.X21.Position = [114 346 26 22];
            
            % Create X32
            app.X32 = uieditfield(app.UIFigure, 'numeric');
            app.X32.Position = [163 312 26 22];
            
            % Create X33
            app.X33 = uieditfield(app.UIFigure, 'numeric');
            app.X33.Position = [163 278 26 22];
            
            % Create X31
            app.X31 = uieditfield(app.UIFigure, 'numeric');
            app.X31.Position = [163 346 26 22];
            
            % Create D2
            app.D2 = uieditfield(app.UIFigure, 'numeric');
            app.D2.Position = [218 312 26 22];
            
            % Create D3
            app.D3 = uieditfield(app.UIFigure, 'numeric');
            app.D3.Position = [218 278 26 22];
            
            % Create D1
            app.D1 = uieditfield(app.UIFigure, 'numeric');
            app.D1.Position = [218 346 26 22];
            
            % Create UITable
            app.UITable = uitable(app.UIFigure);
            app.UITable.ColumnName = {'K'; 'X1'; 'X2'; 'X3'};
            app.UITable.RowName = {};
            app.UITable.Position = [303 109 309 293];
            
            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end
    
    % App creation and deletion
    methods (Access = public)
        
        % Construct app
        function app = LE4
            
            % Create UIFigure and components
            createComponents(app)
            
            % Register the app with App Designer
            registerApp(app, app.UIFigure)
            
            if nargout == 0
                clear app
            end
        end
        
        % Code that executes before app deletion
        function delete(app)
            
            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

Answer 1

[Abhinav]

There is a bug in your code try

tdata = table(itr, A:1, A:2, A:3,'VariableNames',{'K','X1','X2','X3'});

Should fix the issue.

Answer 2

[VBBV]

@Jastin You need to store the solution and iteration array to display the values in uitable as shown below

normVal=norm(x_old-x);
itr=itr+1;
ITR(itr) = itr;  % Iteration array
X(itr,:) = x;  % solution array
tdata = table(ITR.', X(:,1), X(:,2), X(:,3),'VariableNames',{'Iteration','X1','X2','X3'});
app.UITable.Data = tdata;      % display the table data  

fprintf('Solution of the system is : \n%f \n%f \n%f \n%f in %d iterations',x,itr);
pause(0.1)  % optional