The 'standard' summing circuit [0] typically requires an op-amp, which is in itself a multi-element component, and a few resistors. With a memristor, you can th

The 'standard' summing circuit [0] typically requires an op-amp, which is in itself a multi-element component, and a few resistors. With a memristor, you can theoretically skip the op-amp and just use the passive elements, though an op-amp is likely still needed to read out the very small signals [1]. [0] there are MANY ways to skin this cat, but here is a simple one: https://www.electronics-tutorials.ws/wp-content/uploads/2013/08/opamp11.gif?fit=457%2C223 https://www.electronics-tutorials.ws/wp-content/uploads/2013... [1] https://image.slidesharecdn.com/1205-141021211518-conversion-gate01/95/proposals-for-memristor-crossbar-design-and-applications-11-638.jpg?cb=1413926248 https://image.slidesharecdn.com/1205-141021211518-conversion...