HP has been the one calculator manufacturer to embrace RPN in calculators. RPN gives users the option to enter their calculations in different manner, oftentimes more efficient for long calculations. I also can’t write this section without talking a bit about Reverse Polish Notation.
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And as with most graphing calculators today, there’s a USB port to upgrade the operating system and add apps. I just turned it off, but some may really appreciate it. HP goes against the grain and offers sound on some of their calculators like the 50g.
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There’s a good help menu that explains the formatting of every CAS command and displays an example of how to use it. It features an expandable memory via an SD card slot. There are also some small but nice touches with the HP 50g. It’s really nice that this style of “menu” doesn’t block your view of the numbers and operations you’ve been typing onto the display, and I wish TI had stuck with it rather than going the direction they did with the TI-83/TI-84. Any “old timers” out there who ever used a TI-85/TI-86 will be very familiar with this method of using the F1-F6 keys. Aside from buttons for numbers and operations, most buttons will sometimes bring up a modern pop-up menu and other times an unobtrusive set of selections at the bottom of the display accessed by the F1-F6 buttons. You will find most of the features on the HP 50g no more than a couple of button presses away. There’s actually quite a lot to like with the HP 50g. Like most CAS calculators, the HP 50g is banned from the ACT but is legal for the SAT and AP Calculus tests. This means it is most appropriate for students in calculus and above (or planning to take calculus). The 50g is HP’s high end device, and it has advanced capabilities. TI-89 Titanium, both have a CAS (computer algebra system), a similar screen resolution, and the ability to graph in 3D. While preparing this HP 50g review, it felt like a clear competitor to the TI-89 Titanium (review). By contrast, the modern HP 50g is much more powerful, visually elegant, and easy to use. My old HP 48gx was a really cool calculator, but it had a pretty steep learning curve. They have always been among the most powerful, feature rich calculators on the market, but HP has really improved usability in recent years. HP graphing calculators have come a long way since that time.
Despite the lack of new models, the HP 50g has continued to be a popular choice, in fact, the most popular graphing calculator choice among HP fans. Back in the late 90’s when I was an engineering student at the University of Illinois and my graphing calculator of choice was actually, an HP, the HP 48gx. HP graphing calculators haven’t had the highest profile the last few years, but that’s about to change with the release with the upcoming HP Prime-review.
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