Use of Vensim in System Dynamics

10 minute introductory video

	https://www.bilibili.com/video/BV1tk4y1R7Vt?t=572

Master variables, speeds, levels, arrows and plot simulation data

Take population growth as an example:

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Function setting: just
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click the sidebar for drawing.

The key is:
Variables, only the storage of calculations are set, but the initial value cannot be set.
Level: Similar results, save the results, you can set the initial value.
Arrows: connect causality.
Velocity: Iterate the next level and variable in an additive manner.

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Origin blog.csdn.net/qq_42830971/article/details/112062712