keeps the vector the same length
A_i = gradient(A_0,dt).*I.^2;
changes size of vector (and uses a for loop since there are a known number of possible iterations)
% A_0 is my inital array of data, calulated and brought in from another function.
% I is another array of data with the same number of data points as A_0
dt = 0.2 % A set time interval between datapoints
A_i = (diff(A_0)/dt).*I.^2; %My equation to get to the next iteration using the derivative of A_0
for ind=1:length(A_0)
% "re-run the calculation with A_i now taking the place of A_o"
A_0 = A_i;
% something else
%A_0 = A_0(1:end-1) + A_i;
A_i = (diff(A_0)/dt).*I(1:end-ind).^2;
if all((A_0 - A_i)<1e-9)
break
end
end
if ind==length(A_0) && all((A_0 - A_i)<1e-9)
warning('Not converged')
end
