Subscript Indices Error Prompt

I am receiving this error code. Please help. I am attempting to plot a feedback response system.

Answer 1

[KSSV]

c(t) is wrong. Because t will be having zeros, and it cannot be used as indices. Use.

C{T} = your expression.

Note: From next time, please don't attach code as image snippet. Copy and paste the code.

[Jacob Hammer]

I am now receiving this error code:

Cell contents assignment to a non-cell array object.

Error in FeedbackControlSystem (line 68) c{t} = 1 - ((1/B) .* (exp(1) .^(-Z * W_n .* t)) .* (sin(B .* W_n .* t + Theta)));

[Jacob Hammer]

also this is the actual code:

% Must plot c(t) vs t for set values for Z and W_n

% Z = 0.1

% W_n = 2.5 rad/s

for T = 1

t = linspace(0*T,3600*T,360000);

    c = zeros(1,360000);

Z = 0.1;

W_n = 2.5;

B = sqrt(1 - Z^2);

Theta = atan(B/Z);

c{t} = 1 - ((1/B) .* (exp(1) .^(-Z * W_n .* t)) .* (sin(B .* W_n .* t + Theta)));

end

[KSSV]

C(T,:)= your expression