Description: The adaptive method of synthesis of control the system, which has an optimum nomenclature of control parameters, is offered, due to what refuses are determined in good time, that the coefficient of readiness rises. The task of optimum self-reactance adaptation is considered are determinations of possibility of control the system to retuning depending on the changes of external environments. For the decision of the put task the method of Lagrange is offered. Intercommunication is retuning between the parameters of retuning of control the system and efficiency of its exploitation.
Keywords: control the system, synthesis, adaptation, retuning