function within nested for loop

Aamna Alshehhi

2019 10 17

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so i got this code to find the solution for Th3 and Th4. then plot them versus Th2 . but, I couldn't run it because there are many errors. any suggetions to edit?

function F = Aamna_fun1(x)
    Th3 = x(1);
    Th4 = x(2);
    global b c r Z
    F(1) = real(b*exp(1i*Th3)-c*exp(1i*Th4)+r*Th4-Z);
    F(2) = imag(b*exp(1i*Th3)-c*exp(1i*Th4)+r*Th4-Z)
    Th2= 90 : (360+90);
    for e= 2:length(Th2);
        global b c r Z
        a=2;
        b=8;
        c=2;
        r=4;
        d0=6.92;
        ap=6;
        Th1=0;
        Th5=90;
        Z = d0 +r*pi/2+r*1i-a*exp(1i*Th2);
        x0 = [0 0];
        Sol = fsolve(@Aamna_fun1,x0);
        Th3s = rad2deg(Sol(1))
        Th4s = rad2deg(Sol(2))
        for x0 = [Th3s(e-1) Th4s(e-1)]
            Th3s(:,e+1) = [rad2deg(Sol(1))]
            Th4s(:,e+1) = [rad2deg(Sol(2))]
        end;
    end;
    Th2 = 90:360+90;
    figure(1)
    plot (Th2,Th3(1,:));
    xlabel ('TH2')
    ylabel ('TH3')
    figure(2)
    plot (Th2,Th4(1,:));
    xlabel ('TH2') ;
    ylabel ('TH4') ;

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Aamna Alshehhi 2019-10-17

well, that's right but the problem is that i don't know how to write the right nested for loop. I just wanna find Th3 and Th4 values from the function that i l already wrote , then plot Th3s vs Th2 and Th43 vs Th2.