能够支付 发表于 2025-3-30 09:56:34
Two Independent Variableso cause the change in our models. In the first section of this chapter, we introduce several stock variables to indicate various temporal aspects of the state variable of the system. Such a disaggregation can be done, for example, for a population into different age classes. Thus, so far we deal onlEnteropathic 发表于 2025-3-30 15:32:58
Randomnessined and initial conditions were specified within certain bounds, the dynamics of the system as a whole were predetermined and can be exactly repeated with each model run. Real systems are not necessarily that predictable. Rather, some random element may determine the derection of a system’s behavio巨大没有 发表于 2025-3-30 19:20:35
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