Using DPLOT with 42S

[Trond]

Hi folks! I have keyed in the DPLOT program into my HP 42S, but I seem to be doing something wrong. I keep getting "Divide by 0".
I am also unsure what the "Axis" part of the program actually does. I tried plotting a SIN function, filling "1" into all the max values, including "axis", and then R/S. The next thing that happens is that the alpha screen appears. I tried keying in the name of the function, but to no avail.