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Anylogic中的积分

[英]Integral in Anylogic

原文 2020-05-30 09:23:36 9 1 anylogic/ integral

I was wondering if anyone could please let me know the prototype of Integral function in Anylogic.我想知道是否有人可以让我知道 Anylogic 中 Integral function 的原型。 Thanks a lot.非常感谢。

For example, how to put the lower and upper bound of integral?比如，积分的上下界怎么放？

1 个解决方案

There's no such thing as an integral, nevertheless, the concept of stock and flow on a system dynamics model is equivalent to an integral没有积分这样的东西，但是，系统动力学 model 上的存量和流量的概念等效于积分

The lower and upper bound are your simulation initial and end time... And if you want to define other lower and upper bounds, you have to make your flows equal to 0 until you reach the initial time and after you reach the final time.下限和上限是您的模拟初始时间和结束时间......如果您想定义其他下限和上限，您必须使您的流量等于 0，直到您到达初始时间和到达最后时间。

What you are integrating is the sum of the flows that are going in minus the sum of the flows going out of the stock and the result of that integral, is the value of the stock.您正在积分的是流入的流量总和减去流出库存的流量总和，积分的结果就是库存的价值。

Of course, you can only integrate based on time, and using an approximation method such as Euler.当然，您只能基于时间进行积分，并使用欧拉等近似方法。