I am creating a simulation with Simulink. I originally wrote the code in MATLAB script, but it is necessary to block it, and it is blocked mainly using MATLAB function. I want to use the value calculated in the previous loop in the next loop. How should I do that? Here is a simple block. Specifically, a wants to take a value from "initial_value" in the first loop, but wants to update the value from "calculate" in the subsequent steps.