search for: tek4010

...show()" command to actually print out the graph (with '*' for points and - for the x axis, | for the y axis and + for tick marks), we thought it was pretty impressive at the time that the computer would do that for us. Later I learned that our terminals could understand both vt100 and tek4010 protocols so we would do all the typing and textual output in vt100 mode, then switch to tek for the graphs, having actual lines made the graphs look a lot better, but it was a lot slower, you could see each point added to the graph. And if you forgot to switch back to text mode, then you next out...