广告是令人困惑的因为，在其他的理由之中，它的效果在时间期间典型地在外玩，可能是非线性，和用其他的元素在行销混合物中在创造售卖方面能互相影响。

Advertising is bewildering because, among other reasons, its effects typically play out over time, may be nonlinear, and can interact with other elements in the marketing mix in creating sales.

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其中的SIMULINK工具箱可以模拟线性或非线性、连续或离散或两者的混合系统，对复杂的非线性系统仿真模拟的效果更为明显。

SIMULINK toolbox which can simulate the linear or nonlinear, continuous or discrete, or both of the hybrid systems, nonlinear system of complex simulation of the effect becomes more apparent.

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