Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...

Raspberry Pi enthusiasts or electronic hobbyists looking to build an affordable pen plotter may be interested in the BrachioGraph. An easy-to-build pen-plotter, driven by a library of simple Python ...