外文翻譯：現(xiàn)代控制理論簡述-其他專業(yè)-展示頁
2025-01-31 10:22本頁面
【正文】 y analyzed in term of their state. In everyday life, monthly financial statements are monplace. The President’ state of the Union meesage is another familiar example. In all of these examples the concept of state is essentially the same. It is a plete summary of the status of the system at a particular point in time. Knowledge of the state at some initial time t0 plus knowledge of the system inputs after t0, allows the determination of the state at a later time t1. As far as the state at t1 is concerned, it makes no difference how the initial state was attained. Thus the state at t0 constitutes a plete history of the system behavior prior to t0, insofar as that history affects future behavior. Knowledge of the present state allows a sharp separation between the past and the future. At any fixed time the state of a system can be described by the values of a set of variables xi called state variables. One of the state variables of a thermodynamic system is temperature and its value can arrange over the continuum of real number. In a binary work state variable can take on only two discrete values, 0 or 1. Note that the state of your cheking account at the end of the month can
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