newRPL: symbolic numbers

[Claudio L.]

(12-23-2014 01:13 AM)John Galt Wrote:  Going the other way (turning what is now a real or imaginary number back to a symbolic) seems like unscrambling an egg though. The only solution I can imagine would require keeping a practically limitless memory of every step the user did to get to that point. Unless you're talking about a simple one-level "undo" though, which we already have.

What I had in mind was this:

3.14 --> '3.14'

Just adding the quotes! Wasn't thinking of undoing operations to get the original expression that led to the number (that would be cool, but like you said we'd need a more powerful device, perhaps a phone/tablet to keep the history).
Within the limitation we have, at most something like QPI could be implemented.