Building a dataflow graph with Python
mattkeeter.com
mattkeeter.com
But if your state can be abstracted, the architecture allows for some clean, straightforward building blocks.
I have no real understanding or even awareness of analog computing. I recall leafing through an old textbook on chemical engineering earlier this year (as I was looking for practical applications of graph theory), and read a little about the use of analog computing to solve ODEs, and being pretty surprised.
This might be an interesting read: "Handbook of Analog Computation" [1].
[1] http://www.analogmuseum.org/library/handbook_of_analog_compu...