Summary: Bought this to convert to a WP-34S, which is an amazing project. It has an ARM processor that is quite powerful, but the display and particularly the keys kind of suck. Even with the WP-34S conversion and overlay I find myself using it less and less due to missed keystrokes.
Second one I purchased, one for the travel bag ...
keen shopper, Amazon
14 January 2016
Summary: Second one I purchased, one for the travel bag, one for the office. It has the classic positive HP click-feel to the keys, an improvement over the black model HB-20b, which had a much softer, and not as reliable, button push.
Summary: I purchased the HP-30B Calculator to use for simple calculations at work (I have HP-12C for home use). The HP-12C uses RPN input, and I hoped to use the RPN on this HP-30B. There are two problems with this calculator. The second problem is an issue for all buyers.
Summary: HP-30B Business Professional Calculator I use this calculator a lot at work. It's quick and accurate and you don't have to change to a function like you do on a computer. It's a calculator and that's its sole purpose.
Summary: What you're buying is hardware; for that it's good. Buy it and then convert it to the WP-34s. You will then have the finest in handheld number-crunching nerd heaven. If you are not familiar with the WP-34s you can download a WP-34s emulator for iOS from the App Store and try it out on your iPhone.
Cheapest HP RPN, does have basic scientific functions.
28 September 2012
Summary: I'm an engineer who has used a HP RPN calculators for most of my life at this point, and can't stand to use a standard calculator. I have an HP-48sx (and a backup gx) but wanted something smaller, lighter, to carry around. This appears to be the cheapest RPN calculator HP sells currently.
Poweful calculator although it lacks HP`s quality.
Lasala Horacio Fabian, Amazon
23 September 2012
Summary: This calculator is poweful enough to go with you through most of the school,as it has not only business function but also basic scientific. Other features: - RPN option - programmable. What I disliked from it: - no manual: you have to print it from the website: awful.
Summary: This review is for those that are interested in knowing more about the aesthetics of this calculator (as I know there are many die-hard HP calculator collectors out there). I picked this up for a really good price elsewhere.