What good is an HP plotter?

[Dan Grelinger]

Could you please give full particulars what an HP-41C/CV/CX could do what an HP-71B (for example) can't?

Ciao.....Mike
[/quote]

I am not familiar with the HP-71B, so am unable to do a comparison.

It may be that my comment was misunderstood. If using an HP-41C, there are things that can be done with the 7470A that cannot be done in any other way (with an HP-41C, i.e. color plotting and printing). If using an HP-71B, I do not know what can be done.