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How do I put my HP 30b in RPN mode?

HP 30b in RPN mode?

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Press SHIFT [MODE] then down-arrow until you get to "Algebraic" or "Chain" depending on the current mode then INPUT until you get to "RPN." Press ON when done.

Posted on Mar 31, 2014

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How do you clear RNP for an HP 12C


I take it you mean a 12C Platinum.

Press f ALG. ALG is the f-shifted function of the EEX key, just above the double-size ENTER key. This will switch the 12C Platinum from RPN mode to Algebraic mode, and ALG indicator will light up instead of the RPN indicator.

To switch back to RPN, press f RPN. RPN is the f-shifted function of the CHS key just above the EEX key.

Apr 23, 2014 | HP 12c Calculator

1 Answer

How do you put HP 30b in RPN mode?


Press SHIFT [MODE] then down-arrow until you get to "Algebraic" or "Chain" then INPUT until you get to "RPN." Press ON when done.

Mar 31, 2014 | HP Office Equipment & Supplies

1 Answer

For my HP 12C (not a platinum) how do i get back into RPN mode?


I checked the manual, the image of the face of the calculator and there is no way to change the entry mode from RPN to Algebraic. Your calculator is still in RPN, it is the only mode it has. Reset it.

Mar 19, 2014 | HP 12c Calculator

1 Answer

I have a 12C (not a Platinum!), and I can not get back to RPN mode


I checked the manual, the image of the face of the calculator and there is no way to change the entry mode from RPN to Algebraic. Your calculator is still in RPN, it is the only mode it has. Reset it.

Mar 19, 2014 | HP PSC 1210 All-In-One InkJet Printer

2 Answers

HP12C - get rid of RPN


Press f ALG to switch to the Algebraic mode.

ALG is the shifted function of the EEX key.

Mar 17, 2014 | HP 12c Calculator

1 Answer

Get out of rpn mode on hp 12c


On a 12C Platinum, press f [ALG]

On a non-Platinum you're stuck. It has only the RPN mode.

Jan 15, 2013 | HP 12c Calculator

1 Answer

I'm in RPN mode, how do I get out of RPN mode?


To switch to the algebraic mode press f [ALG] (the EEX key).

Dec 08, 2011 | HP 12c Calculator

1 Answer

Stuck in alg mode


Assuming you have a 12C Platinum, press f [RPN] to switch from the algebraic to the RPN mode. [RPN] is the shifted function of the CHS key on the top row of the keyboard.

Jun 21, 2011 | HP 12c Calculator

1 Answer

Do you have advice in calculator choice between HP 12 c and the TI BA II Plus Professional Financial Calculator? Assuming that I get proficient with RPN (which I'm learning now); is one faster than the...


The 12C is more expensive and more powerful than the BAII+Pro. The HP is also programmable, which the TI isn't. Starting from scratch (assuming you've never used a calculator before---a somewhat unreasonable assumption) the TI might be easier to learn, at least initially. But after a certain point, the HP will leave the TI behind. The HP is faster and more capable.

There are at least three different versions of the 12C available. There's the original 12C, the 12C Platinum, and the current 12C. The only way to tell the difference between the two non-Platinums is to look at the battery compartment---the original uses three button cells while the newer uses two coin cells. The newer one is MUCH faster. The Platinum, however, can use RPN or algebraic.

Unless your choice is limited to the 12C or the BAII (by the requirement of an exam, perhaps), you might want to look at the HP 20B and the HP 30B. Programmability aside, they're even more powerful and easier to use and faster than the 12C, and the 30B is also programmable.

There are other considerations, of course. Factors such as the feel of the keyboard, the 12C's landscape orientation as opposed to the others' portrait orientation, etc, are all matters of personal preference.

Disclaimer: I own multiple HP and multiple TI calculators. I tend to use HP calculators for calculating, while I use TI calculators to answer questions here at FixYa.

Mar 23, 2011 | HP 12c Calculator

1 Answer

How do I put my HP19BII Calculator back into RPN mode?


Press the [Yellow key] then[DISP] to access the MODES. Press the [MORE] tab (first key to the right) then select [RPN]

Feb 01, 2010 | HP 19BII Calculator

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