You will never use another calculator once you get used to its logic and the HP beveled keys with this rotate-and-click effect. There are others calculators which are more powerful and faster but out of all the calculators I have I am only using this one. I am using it a lotīut it is still as good as new. I bought this hp15c in 1988 and it was my first RPN calculator. Later I bought some (like the hp12c and the hp-prime)

Originally I did not collect RPN calculators.

Elvis Pfutzenreuter: has a number of apps and calculators including a web based HP-15c emulator.

Torsten Manz wrote the best desktop version of the HP-15c.

You can resize the window if you want to see the registers. Greg wrote a very authentic javascript based HP-15c. He has versions for Windows and Mac as well as a java swing version that can be used under linux (run: java -jar HP15C.jar). Web browsers and they look and work like authentic HP calculators. While my calculators work withĪny old browser (pre 2010) you can find now calculators written for more modern Usable calculator in Javascript and I developed gsrpn. March 2008 I decided that it must be possible to write a more I always found my self looking for a real HP pocketĬalculator when I had to do some calculations. In a while but it never really felt like a real HP pocketĬalculator. I did not find one so I wrote one my self. Independent of the operating system on any computer out there. Table I have been looking for a good calculator that just runs Now that PCs and Laptops are one every office

I have been using HP RPN calculators since the beginning of my Have however a look at this interessting experiment that compares calculators with RPN and algebraic notation. Telling a student 'Just type it in as you find it in the textbook' is easier than explaining how RPN The algebraic notation as used by most calculators LOOKS simpler. Understood the logic and used them for a while you would never RPN calculators are not so common because it takes a bit of

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