Calculator RPN

Functions properly as an RPN calculator that puts an expression under the x register which summarizes the operations. Nice touch but that's pretty much where it ends. On computer screen the calculator opens with ridiculously wide buttons in a window that takes up a third of the screen. Sure it can be resized but next time it opens at maximum size again. Setting includes option to specify number of decimal places from 15 to 4. It would be nice if this could be set to 2 for financial calculations, although it's an academic argument since this setting doesn't change anything.

I

why do 24!, 30!, and 52! all give the same result

Wow

This is the best RPN calculator app I’ve ever used. The layout is clean, intuitive, and the buttons are clear and concise. The calculation steps/history immediately tells me if I’ve accidentally fat finger any keys while the “always on” feature (the phone stays on while the app is up) is a brilliant touch. This avoids the constant nuisance of logging into my phone every two minutes while I’m doing calculations. I use this handy piece of software nearly every day for work and home and it’s simply fantastic. My only wish is that it did unit conversions but it’s such a small gripe that it really should be a footnote because the rest of the app is that great. If you know how to use RPN, you won’t regret getting this calculator.

This RPN calculator is fairly good but it's missing some important features such as STO and RCL. It could also really use a stay-on-top feature. I've communicated these to the developer but he doesn't seem interested in doing anything.

Don't care about past evaluations, now he is perfect. A perfect calculator.

I have always used RPN calculators and could not use the standard x+y=z calculator that comes with the iPhone. Now I can use my iPhone for numbers again. Great product. Apple should have it as an option to their puny app.

This app has a clean feel and nice presentation, but is seriously lacking in the calculation department. It seems to calculate with 32 bit integers and doesn't have any overflow protection, making any sort of scientific calculation next to impossible. If you're looking for a clean RPN, you should look elsewhere.

Je suis habitué à la notation polonaise inversée, grace à ce petit logiciel je retrouve mes marques. J'apprécie partculièrement le nombre de lignes qui, à mon avis pourrait être augmenté.