RPN 50g

• The paper roll (the menu ▸ Show Paper Roll; on the Mac, Machine ▸ Show Paper Roll, ⇧⌘P): beside the calculator on an iPad, as a sheet on an iPhone, a window of its own on the Mac, which holds against the calculator's side when dropped there. The last 500 lines are kept. • Each operation is written on it as on a printing calculator: the command line and the key (or the menu label) on the left, level 1 on the right, as the display shows it. ⋯ ▸ Log Calculations turns it off and on. • What the calculator prints (PR1, PRST, PRVAR, PRLCD…) comes out on the roll, as on the HP 82240B printer: with the roll shown, flag -78 is set, so that the 50g prints through its serial port. • Share ▸ Copy, Share Text, Share PDF, Save as PDF… (Mac) and Print…: A4 or Letter pages with the calculator's name and the date. On the Mac, File ▸ Save Paper Roll as PDF… and Print Paper Roll… (⌘P), the roll's window shown or not. • On the Mac, the manuals' windows hold against the calculator's side too, beyond the roll when both are on the same side.