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(Little blurry…) "Anna" programmed for Lotka-Volterra (prey/predator) equation. 1st display mode: a strip chart with prey population red, predator orange. (Predator's population lags prey's.) 2nd display mode a kind of XY oscilloscope plotting pop. in "phase space". #analogcomputer #electronics

Yeah, this was my project to teach myself about analog computers. I'll have the boards (open source too) by the end of the month (I hope). Just wrapping up the manual (documentation) — one more round on the integrator PCBs, a few YouTube videos to introduce them…

The Analog Thing looks well built—mine less expensive and "hobbyist grade". (But fun!) I was put off by how much The Analog Thing cost—and then ended up spending 4x and 8 months or so to design and iterate on these "Anna" boards… Oh well.

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