RPN Financial 12 manual · Chapter 16 of 16

Reference

Reset and clear the calculator, number range and precision, display limits, and what is not included.

16.1Clear and reset#

To clear	Press
The X register	`CLx`
Statistics registers R1 to R6 and the stack	`fΣSST` (CLEAR Σ)
The financial registers n, i, PV, PMT, FV	`fFINx⇄y` (CLEAR FIN)
All storage and financial registers and the stack	`fREGCLx` (CLEAR REG)
Program memory	`fP/RR/S` to enter program mode, then `fPRGMR↓` (CLEAR PRGM)
Everything: stack, registers, settings, program and history	Settings, then Reset calculator

Your work is saved by the app between sessions, so it is still there when you return. A pending prefix (f or g) is cancelled with ON.

Item	Value
Digits shown	10 (plus a sign), with commas in groups of three
Digits kept inside	13 significant digits
Largest number	9.999999999 × 10⁹⁹
Smallest number	About 1 × 10⁻⁹⁹ (smaller results become 0)
Registers	20 storage registers, plus n, i, PV, PMT and FV
Stack	4 levels (X, Y, Z, T) and LSTx
Cash flows	CF₀ and up to 19 CFj, each repeated up to 99 times
Program memory	99 lines

The display setting changes only how X is shown. A number that does not fit is shown in scientific form.