I took the same course! I remember that we had been taught to calculate the voltages and currents for all points in an electrical network as vector algebra oper

I took the same course! I remember that we had been taught to calculate the voltages and currents for all points in an electrical network as vector algebra operations. Then, for one of our assignments we were expected to just learn APL on our own to write a program to do these calculations. As I recall, it wasn't too difficult using APL. I believe that we were given or used some sort of IBM manual to learn APL. I just searched my library and found APL/360 An Interactive Approach by Gilman and Rose, 1970[1]. However, APL was most definitely not the focus of the course so I think this was a book I bought a couple of years later in grad school for myself. We wrote the programs on a fancy version of a teletype machine, made by IBM, called the IBM/360 APL Terminal System. See the photos of the paper based terminal in [2]. [1] http://www.softwarepreservation.org/projects/apl/Books/GillmanAndRose http://www.softwarepreservation.org/projects/apl/Books/Gillm... [2] http://thenostalgicgeek.blogspot.com/2013/09/resurrecting-apl360.html http://thenostalgicgeek.blogspot.com/2013/09/resurrecting-ap...