With two op amps you can build a neural network. (Or at least a single perceptron) https://www.nutsvolts.com/magazine/article/the_perceptron_circuit https://ww

With two op amps you can build a neural network. (Or at least a single perceptron) https://www.nutsvolts.com/magazine/article/the_perceptron_circuit https://www.nutsvolts.com/magazine/article/the_perceptron_ci...