Comments on: Hewlett Packard Brings Classic Calculators to iPhone App Store

By: Steve

Steve — Sat, 29 Jan 2011 02:05:51 +0000

What you wrote is not how one uses RPN. You don’t 5 1 2 + 4 * + 3 – . You do 5 + (1+2)*4 – 3 and just enter the numbers as they show up, and apply the operations when you need to. Note that you don’t need to put in parens.

By: Charolette Cuascut

Charolette Cuascut — Wed, 19 May 2010 06:12:20 +0000

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By: Dazza

Dazza — Wed, 25 Nov 2009 00:36:14 +0000

Would be sweet to have these on the Android platform!

By: P Dickerson

P Dickerson — Mon, 16 Nov 2009 01:42:09 +0000

Are there plans for HP calculator apps for the Mot Droid?

By: Byron

Byron — Sun, 05 Jul 2009 06:13:24 +0000

The iPhone 42S is not a ROM emulation, but a port of Free42 which is a complete re-implementation of the HP-42S in C. It runs natively on the iPhone.

By: scottb

scottb — Sat, 27 Jun 2009 01:04:39 +0000

PCalc!

By: bobernet

bobernet — Fri, 26 Jun 2009 19:30:41 +0000

"Name" said: HPCalc on Cydia for free…all the versions.

Which used to be wonderful, but crashes on OS 3.0. I'm hoping for an update, but not betting on it.

These seem almost ridiculously overpriced when the 42S and 41CX versions by third-party developers also use original ROM emulation, add program portability, "printing", etc for a fraction of the price.

By: KimH

KimH — Fri, 26 Jun 2009 19:25:39 +0000

If you like vintage HP gear, you should see the HP-41 programmable calculator emulations for iPhone here:

http://alsoftiphone.com/

I have the i41CX+ app, and it’s amazing. The developer has added some modern, iPhone specific commands.

By: Simple

Simple — Fri, 26 Jun 2009 16:55:49 +0000

Calavera, My first calculator was a Sinclair Scientific with rpn. I can see that the 1 ENTER 2 + logic is annoying for simple functions, but start adding a couple of layers of paratheses and some powers, and I simply need a rpn calculator. When I am without my trusty 48G, I need to solve anything beyond the simplest problems with pen and paper. I guess I would be in your demographic, though.

By: thekevinmonster

thekevinmonster — Fri, 26 Jun 2009 15:54:25 +0000

Uses the original ROM code? Isn’t emulation against the iTunes App Store guidelines?

By: Darren

Darren — Fri, 26 Jun 2009 15:10:22 +0000

Rene, you write, “nostalgic for calculator enthusiasts.” The HP 12C and 17B II are still the standard in financial circles. I can’t tell you the last time I saw an investment banker with anything but an HP 12 or 17. It is simply a required piece of equipment…and rivals the Blackberry in its office saturation. I can only hope they come out with the 17B II application soon. That would be a god-send!!

By: Name

Name — Fri, 26 Jun 2009 14:10:04 +0000

HPCalc on Cydia for free…all the versions.

By: crashmstr

crashmstr — Fri, 26 Jun 2009 13:44:22 +0000

I have been enjoying the use of the 42s app as well, so I see no need for HP’s new software. On the other hand, if they make an official HP-48s version, I’ll pay for that.

By: Don

Don — Fri, 26 Jun 2009 13:26:25 +0000

I currently use the RML software version of the platinum and love it. I have 2 of the “real” platinum calculators already and love them. I actually use them in ALG mode so they work in a conventional way, but can always use RPN if desired. Will I buy the official HP version for $20. Not sure yet, but there is something about having the “official” version from a future support perspective.

By: Ed

Ed — Fri, 26 Jun 2009 13:17:32 +0000

$30? why not just buy the 42S app, which is the iPhone port of the free42 HP 42S emulation project, and is only $5? Love it!

By: tyler

tyler — Fri, 26 Jun 2009 13:10:31 +0000

The HP 12C is the greatest calculator EVER! 1 ENTER 2 + …answer is 3!

By: The Reptile

The Reptile — Fri, 26 Jun 2009 13:04:04 +0000

I’m not planning on buying but it makes sense. Kids today start using calculators like these (and ones from TI) beginning in middle school. They are mandated and the products can go up to $100. So if your child already has an iPod Touch why not buy the app rather than the real calculator and save $85 in the process.

By: Calavera302

Calavera302 — Fri, 26 Jun 2009 13:04:01 +0000

I never could get the hang of RPN.

5 1 2 + 4 * + 3 −

just doesn't seem that straightforward to me. Still, if it's what you're used to, I can see this appealing to people. And the price, while a premium, may not seem so high to the target audience (older engineers/math types who used RPN exclusively during their careers).

By: Simple

Simple — Fri, 26 Jun 2009 12:04:57 +0000

Because some of us can’t use the algebraic oriented logic of the standard calculator. It will be nice to have reverse Polish notation (which I can use without screaming at the calculator) on the iPhone, so yes, I will be buying the app.