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Is there an analog of an FPGA for analog computers? Or is that like what an analog computer is

Yes, and they're called FPAAs

https://en.m.wikipedia.org/wiki/Field-programmable_analog_ar...

Cool! I feel like these could have nifty signal processing applications for hard real time systems.

Differential analysers often had components which you would connect to model ODEs. I suppose it is like an FPGA but they weren’t programmable

It would be cool if analog computers could be miniaturised as digital computers were. Then maybe they could also be programmed, and you would have your answer

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