Hello everyone, In the following code, I am trying to record V values in the matrix V_mat not just the last value. Please help me how can I do it.

Code

Answer 1

[Geoff Hayes]

@Mohammad Dawoodzada - initialize the matrix outside of your loops (rather than on each iteration of the inner loop) and keep track of which index to insert the new V into. For example,

V_mat = zeros(10, 4);  % initialize here
index = 1;             % current index variable
for r = Ri:1:Ro
    for Theta = 3:1:6
        Z1 = r*cos(Theta)*cos(Beta)-((P*Theta)/(2*pi))*sin(Beta);
        Z2 = r*cos(Theta)*cos(Beta)-(((P*Theta)/(2*pi))-(P/N))*sin(Beta);

        if Z2>Zwl && Z1>Zwl
            dT = 0;
        elseif Z2>=Zwl && Z1<= Zwl
            dT = ((Zwl-Z1)/(Z2-Z1))*(P/N)*r;
        elseif Z2<Zwl && Z1<Zwl
            dT = (P/N)*r;
        else 
            fprintf('No result was found')
        end
        fun = @(x,y) dT+0*x+0*y;
        V = integral2(fun , Ri, Ro, 0, 2*pi);

        V_mat(index) = V;    % update V_mat
        index = index + 1;   % increment index
    end
end

[Mohammad Dawoodzada]

Thank you so much !!!!

You really saved my time.