MATLAB: Question about the using of the loop function

loops

Hello, How can I use the final results obtained from the first iteration of a loop function in the second iteration of the same loop? For example, let T=[100:200], and A(T0) and k are constant known values. for T=T1, I want to calculate the following: I(T1)=A(T0).* exp(T1)
A(T1)=I(T1).* k
However, for T=T2, I want to calculate:
I(T2)= A(T1).* exp(T2)
A(T2)=I(T2).*k
and,
fot T=T3,
I(T3)= A(T2).* exp(T3)….and so on.
A(T3)=I(T3) Thanks

Best Answer

With T that large, you quickly end up with an array of Inf values.
This loop will do what you want:
A0 = 3;
k = 5;
I(1) = A0 * exp(100);
A(1) = I(1)*k;
for T = 2:100
    I(T)= A(T-1).* exp(T+99);
    A(T) = I(T)*k;
end
I started the loop counter at 1 rather than 100 because otherwise your arrays are padded with 99 zeros. That takes up memory.
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