Awesome!

Doesn't do RPN.

Didn't think I would like it, but I like it a lot!

it sucks

thought I'd only like an HP type RPN, but this keyboard interface is better than trying to tap buttons, and it shows some history to catch any entry errors. It's excellent for quick math, and trig functions. For financial or more complex stuff, I use a spreadsheet, but there's many times where you want a quick calculator available in your browser corner.

Wow, this calculator rocks!

RPN mode is fantastic, very good with my Chromebook, the keyboard data entry is very clever.

utile et bien... certaines fonctions pourrait encore être simplifiés et le "look" amélioré...

Great RPN calculator that works in the chrome ecosystem. It also has a non-RPN mode, but I prefer RPN. This app is really well thought out from a pure usability standpoint. Once you get the key commands worked out it will be your go-to quick calculator

In the past I would have given this extension 5 stars. However, the latest version wants access to all data on all web sites and that is simply unacceptable. Uninstalling and moving on.

I liked this a lot but the latest version wants access to my data on all web sites. No way.

Finally!! A useful RPN calculator for the Chrome environment. I'm rather amazed that instead of typing "sin" you can do this through a menu and key abbreviations. Very, very, very, slick. Would give it five stars if only it used floating decimal representation for numbers instead of the (industry standard floating binary). What this means is that only .5, .25, .125, etc. can be represented perfectly. To see the problem, try "9 8.7 - .3 -", the answer is actually zero which a three dollar calculator from the grocery store will give you. And no. Please don't "fix" it by putting a rounding operation before you display. Please don't. Leave it this way rather than rounding. That way leads to madness.. ;^} I do know the arithmetic library is a generally non-solvable problem, unless you use a language where you can actually specify the data storage format for numbers (Cobol, Fortran, Ada..) which modern languages lack, or you use a library for BCD or something which is not part of any standards. Again, despite my gripes, Thank you for the really fantastic calculator app!