HP 9100A 50th Anniversary

[pier4r]

Thanks for the contribution! (and I expect 50seconds on a modern computer, not on the real thing)

What is impressive from that function is - if HP did not lie - that the plotter plotted the function in 3d .

I mean if you have the slices of the function, it is already a lot of work, but doable. Doing an isometric projection requires an entire additional program to do it. Doing that in the early versions of RPN would be quite a lot of work (well in general with RPN would be a lot of work).

For this I asked if someone could replicate it. Maybe someone knows math functions that would ease the task that I am not yet aware of.