Re: The 12cp... Message #9 Posted by Vieira, Luiz C. (Brazil) on 20 May 2004, 4:58 p.m., in response to message #8 by Gene
Hi Gene, folks;
just a brief add: I had a TI BA55 (or 55C?) that is also financial, programmable, algebraic and has no parenthesis. I thought it would be better in the hands of a very good friend, also contributor in here, so I no longer have it.
About the HP12C Platinum "parenthesisless" algebraic features: if we think RPN in most cases, that will do. Even the stack features (WITHOUT the extremelly desirable duplication of the x-contents with ENTER) are kept somehow, with [x<>y] performing some interesting tricks. Try this:
in RPN mode you can fill the stack with 50 (T), 40 (Z), 30 (Y) and 20 (X) with the sequence:
50 [ENTER]
40 [ENTER]
30 [ENTER]
20
You can use [Rv] (roll-down) to check the contents. Now try this:
[f] [ALG]
50 [x<>y]
30 [ENTER]
40 [x<>y]
20
Only one [ENTER] and you have the same stack contents. You can use the same sequence above, as in RPN, to fill the stack in Algebraic mode, but [x<>y] somehow "locks" stack automatic lifting. Tricky, isn't it? Anyway, you still cannot duplicate with [ENTER].
I enjoy using the HP12C Platinum, but I barely use Algebraic mode. Mostly to show former HP12C users the difference of using the Algebraic mode against RPN and what's new on the HP12C Platinum. Most former RPN users prefer using RPN istead of algebraic. But I had the chance to show someone that does not own an HP calculator that the HP12C Platinum uses Algebraic as well. He told me: "Now I'll consider buying one." Well, he told me that in Portuguese, in fact.
Cheeers.
Luiz (Brazil)
Edited: 20 May 2004, 5:10 p.m.
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