(12C) Signum Function
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03-04-2019, 10:49 AM
Post: #21
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RE: (12C) Signum Function
(03-03-2019 06:52 PM)Gerson W. Barbosa Wrote: That’s what I get on my TI 57, but on my 12c Prestige (and on the latest Platinums, I presume), arguments on the display cannot be reused after an operator. But it seems to have worked on early 12CPs, as Robert noted. (03-03-2019 06:52 PM)Gerson W. Barbosa Wrote: IMHO, this is a feature, not a bug. Although the old behavior is apparently more convenient in some situations, I prefer this new one I prefer the other way as it can shorten and simplify quite a lot of calculations. For instance the sum formula (n²+n)/2, that's simply + x² / 2. Add an "=" before the division, if required. On some (many, most, all?) TIs, e.g. the 58/59, there even was a way to re-enter the displayed value during a calculation by means of the CE key, as in 5 x ( CE + 1 ) / 2 = I really appreciated this as it helped overcome the limitations of AOS (a bit). But then... (03-03-2019 06:52 PM)Gerson W. Barbosa Wrote: (or at least I would if I chose ALG, which I never will). That's what I really love about RPN: it's direct, straightforward and unambiguos. It simply does what you tell it to do and intermediate results can be freely stored on the stack. Dieter |
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