The Final Value Theorem is a way we can determine what value the time domain function approaches at infinity but from the S-domain transfer function. This is very helpful when we’re trying to find out what the steady state error is for our control system, or to easily identify how to change the controller to erase or minimize the steady state error. Two proofs of the Final Value Theoerm: www.ee.kth.se/~tn/…/Basic…/Initial_and_Final_Value_Theorems_uk.pdf renyi.ece.iastate.edu/zhengdao/initial-value-theorem.pdf

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