How do I plot the different elements of a matrix in a single plot?

I want to plot theta(1,1), theta(2,1), and theta(3,1). I tried to plot it but it just shows an empty graph.

for t = 0:1:100
    omega1 = 0.02*cos(0.15*t) + 0.03*sin(0.15*t);
    omega2 = 0.03*cos(0.15*t) - 0.02*sin(.15*t);
    omega3 = 0.01;
    omega = [omega1;omega2;omega3];
    
    E = [pi/3;pi/5;pi/6];
    
    C = [sin(E(3,1))               cos(E(3,1))                0;
        cos(E(3,1))*sin(E(2,1))   -sin(E(3,1))*sin(E(2,1))   0;
        -sin(E(3,1))*cos(E(2,1))   -cos(E(3,1))*cos(E(2,1))  sin(E(2,1)) ];
    
    theta = (1/sin(E(2,1))) * C * omega;
end

[Jan]

Please show use the code for plotting. Most likely the problem is there, but unfortunately you did not post it.

Remember than plot(1,2) does not create a visible line, while plot(1,2, '.') draws a dot.

[Dyuman Joshi]

Please clarify if you want to plot the final theta or plot theta for every iteration, all in a single graph.

And are you plotting theta against anything or just theta?

Do you want a line plot or just dots?

[Sneh]

Sorry for the confusion, I want to plot each element of theta for every iteration on the same plot. I want to plot just theta with a line plot

Answer 1

[Dyuman Joshi]

for t = 0:1:100
    omega1 = 0.02*cos(0.15*t) + 0.03*sin(0.15*t);
    omega2 = 0.03*cos(0.15*t) - 0.02*sin(.15*t);
    omega3 = 0.01;
    omega = [omega1;omega2;omega3];
    
    E = [pi/3;pi/5;pi/6];
    
    C = [sin(E(3,1))               cos(E(3,1))                0;
        cos(E(3,1))*sin(E(2,1))   -sin(E(3,1))*sin(E(2,1))   0;
        -sin(E(3,1))*cos(E(2,1))   -cos(E(3,1))*cos(E(2,1))  sin(E(2,1)) ];
    
    theta = (1/sin(E(2,1))) * C * omega;
    plot(theta)
    hold on
end

There are three points in each curve, x values - [1;2;3], y values - [theta(1,1);theta(2,1);theta(3,1)]