HP 48 vs HP Prime

[@shoman24v]

I have a large collection of HP48's SX, GX, G, some other in the line for the time, and a Prime G2. The G2's screen in a couple years went bad. A large number of my 48's still look brand new and function as new. Considering the times, the 48's were awesome machines. I can't get away from them.

[@betaorionis2164]

IMO, the 48 series is the last "true" HP calculator worth its name. Solidly built, chunky keys, only RPN... It's the logical evolution of the lineage that started with the 35. I have a 48S, the most basic model of the range but still a very capable machine. It's in absolute "as new" condition after 30 years, a testimony that it's, above all, a high-end, high-quality product. However, it's slow (specially for graphs) and the small screen of low resolution (compared to 2020 standards) is not perfect for graphs. Also, programs longer than twenty lines are difficult to write and debug. But all in all, an amazing machine from times gone-by.

[@mattneff1262]

What about the 50g?

[@betaorionis2164]

@@mattneff1262 Great machine, but small keys not “classical HP” for me.

[@bt619x]

I agree. I can very much afford a quality new calculator at the same or higher price point that my 48GX was, but HP sadly hasn’t made a quality replacement. The 50G was a step in the wrong direction with quality. The Prime went further in the direction of lower quality. The 48GX still gets used. Much better button feel. It’s no surprise that a NOS 48GX is still a popular buy at $400-$600 on eBay.

[@bicqtran]

I have HP48G, 48GX and 2 Primes. After using the Prime for unit conversion, I went back to 48 permanently. On Prime there are layer upon layer of selection just to do a conversion. On 48 there are just a few key strokes. Also the key press on the 48 is superior and second to none.

[@vladimir0700]

I have both calcs-love the prime! The 48 was good for its time but S-L-O-W, and editing a large program on it was just impossible!!!

[@nschutten]

I have both two (and the 50, and...) and I am indeed amazed by the speed improvement, ease of use, etc of the Prime. But... The HP48 looks and feels so much better still! Not something you can say about calculators maybe, but to me it is just bad ass 😎

[@IExSet]

If you need speed, stop kidding, use a COMPUTER !

[@danbhakta]

I've been using the 48 emulator on my Android for years. RPN is my preferred entry mode.

[@Chrisschaab]

I used one of these as well. The prime emulator on the phone is free (without all the apps available on the real phone) so you can give it a try without plunking down any cash.

[@phillipmay2541]

@@Chrisschaab we should thank HP for making the 48 roms freely available for download to use with these emulators and thank the talented developers in France of the EMU 48 Codebase that powers the emulator apps on android and others eg. Power 48 for the Palm TX

[@scramjet4610]

Had problems with the HP Prime locking up occasionally, and needed to reset by pushing a very small button with a pin on the back of the calculator.

[@joeddejohn]

Miss the HP 48G. The Prime is nice though.

[@jessstuart7495]

I use Droid48 on my phone.

[@edmund8954]

Can you do programming on the 48? like variables,whileloops and forloops

[@Chrisschaab]

You can do programming, I haven’t done any since the 90s, but back then I made some simple programs. There were others who even made games for the 48! This site (not mine) has some tutorials if you’re looking to get started: www.quickclose.com.au/tut.htm

[@IExSet]

You can do RPL, SysRPL programming, and Saturn assembly language.

[@andrelclucato]

I had a HP 48S, then a 48GX. Now I've just bought a HP prime. However, in the 48, at the solve app, i used to use the equations with or without units. More than that, whit any unit as desired, since compatible with the equation. Is that possible on HP Prime? I'dnt figured out how to do this. In the equation V=S.t, entering S in 'm', t in 's', I could get 'S' in mph, or kph, or ly/y, independently of others units. Is that possible in the Prime?

[@walter-yt8mu]

Is the hp prime a good starting calculator for its kind

[@zackkarp5649]

48 GX is way better than Prime, I can use Survey, Estimating Card for Designing and hp Cordless Printer. I'm using hp 25c, 41cv, 48gx since 1980-1993 - 2019.

[@matteoverardo8005]

Does HP Prime support RPN calculation?

[@Chrisschaab]

It does, it's an option in one of the menus and then it's fully RPN

[@Proferk]

If you want a RPN calculator you'll be VERY disappointed with the Prime. First off, the Prime doesn't support RPL. So forget RPL programming. even then, the RPN on the prime is extremely limited.

[@Chrisschaab]

@@Proferk I think maybe it’s regular RPN without the RPL that were added on from (I think) the 29 to 50 series. Now I’ll admit I haven’t done real programming on the prime, as for anything complicated I now use a computer, but I’ve never been disappointed with the RPN. That being said I still use my 48 for most everything as I’m more familiar with the key layouts and like the clicks of the keys quite a bit better.

[@seitch1]

I wish they'd make the Prime as tough as the 48. Just looking at the Prime it feels like an updated TI graphing calculator from the 80's. I may have to buy to try it out in person.

[@betaorionis2164]

I'm a hardcore fan of HP calculators in RPN since I purchased my HP 41C as a young student of engineering in 1981. I have started a small collection of vintage HPs and now I now ten machines, all in working condition. So, I'm definitely not a member of the anti-HP brigade. But let's get real, all those complex scientifical and programmable calculators don't stand a chance against an iPad with an Excel worksheet, let alone an iPad with some maths software. Calculators can be good for exams, because no other devices are allowed, but that's all. Scientifical calculators are starting to look as outdated as slide rules were when HP launched the 35 in 1972. Very sad, but that's technological progress.

[@Chrisschaab]

I agree 100% that even the cheapest tablet can outperform a scientific calculator of any brand, but I think calculators still have two key niches that they fill nicely. The first is, as you mention, exams, as many standard exams only allow a subset of calculators. The 2nd is in straight number crunching where you need to enter a lot fo numbers without looking. The real tactic keys of a calculator allow me to enter in error free data without looking. For example I still use my HP48 (or the prime, I switch between them) to add up expenses and to do my taxes. I have the HP48 Prime app on my phone, but I find I can’t reliably hit the right numbers without looking. Maybe younger folks can. I no longer use the calculator for any kind of graphing, either the prime or 48. The prime is very quick with it, but it can’t compare to the tools on a computer. (Mat lab, wolfram, etc). So I agree that sadly technology moves on, there already are only a fraction of physical calculators compared to what you could buy in the late 80s early 90s.

[@NickApostolakis]

The form factor is important in many cases. I usually have open my main programs on my computer screen and use a physical calculator to do my calculations. I find this sometimes is a lot more flexible than having two programs open on different displays and switch back and forth. The calculator physical keyboard is very useful for this workflow.

[@JacksonBenete]

Even though I'm a Software Engineer and I do touch typing, meaning I'm quite comfortable with a computer keyboard, I can't be as close efficient using a PC, Phone or Tablet than I am using a calculator. Apart from RPN, when using textbook or algebraic I often use a lot of parens to organize my thoughts and the operation order, and holding shift to type parens and all math symbols using a computer keyboard isn't practical. Holding a calculator in my hand I'll just solve tons of problems and exercises while I would still finishing the first one by typing on a computer keyboard. Also, not everyone is really a fan of "one device to rule them all". I believe a lot into a single device (or software) that do one thing well, and calculators are very good in what they're supposed to do. I'm sure that calculators will not fade away and not only because of school/exams. They are great devices and way more practical than holding a laptop or a tablet. Having said that, I don't think that calculators are perfect though. It should be easier to write programs in multiple languages and not only HP Basic or micropython or whatever. Computers have the advantage of having more "ecosystems" available. I think that the next evolution level isn't about calculators reaching an end, but it's about an easier communication between the two. Like what I've read someone saying recently, using the PC like an IDE for your calculator. Also easier transfer of data and programs to the calculator without the need to plug cables for example.

[@seitch1]

@@JacksonBenete I don't even use a calculator much these days, but the ability to cradle the 48 in hands and tap away with thumbs is super efficient. I absolutely agree that using a tablet is in no way as efficient. I know I sound like a nostalgic Blackberry user but when I need to calculate quickly the HP 48 is what I reach for first.

[@BooksAtMidnight]

(Note to self regarding math programs)

[@RafaelPedrocb1978]

My 48+ just died. Hp disign is criminal. It's impossible to open without damage something. The access is terrible for maintenance.

[@moniack]

Trying to take mine apart now. Sad that it is not easier to disassemble. It will never look the same, but I'm sure it will be fixed. I could get a new one, but the keyboard ribbon's foam would eventually also fail.

[@AprendizDeLoQueToca]

@@moniack there's a vid here on YT of a dude that opened and fixed his hp 50 or 48

[@yousrakadcha7949]

Guys please what's the best programmable calculator for a land surveying student?

[@Chrisschaab]

I would say it depends on the school and what most students use. While I would use a HP calculator, if the professor and other students are using TIs then it may be harder to learn with them. Can you ask a professor at the school?

[@yousrakadcha7949]

@@Chrisschaab the professor has no problem with the brand. I was asking To know the best calculator for land surveying students or experts in general since we do certain operations and applications that need certain functions.

[@jvanegas14]

If you really need a TI go for the 89 titanium. It's built like a tank, is pretty easy to use and has a huge online community so you get lots of programs and support. It's also a lot cheaper than an Nspire or a Prime, and unlike the Nspire the keyboard actually makes sense.

[@michaellerner6986]

HP50g. All the functions of the 48g plus CAS. Easy unit functions. Infra red so easy to print out anything. TI quite similar but no RPN.

[@Falcrist]

Advantages: The Prime runs on a Samsung ARM 9 SOC, so it's fast as hell. The touchscreen is actually really nice, and allows scrolling, selecting previous results (or stack levels), and even pinch-zooming. The CAS and built in mathematics functions are extremely powerful, and well layed out. The help button gives you instant access to context sensitive information on every function. It's basically a whole manual. Disadvantages: The RPN is buggy and less full-featured than the 50g. It's also restricted to Home mode, so CAS functionality is super awkward (though you CAN use CAS functions in the Home screen). The viewing angle on the screen sucks. The contrast of the blue and orange labels isn't great. The included software (apps) isn't as full-featured as it's predecessors. Where's the equation library?!

[@barneyr.471]

Falcrist I don't see the missing software as such a big deal, as you can quite easily install solvesys on it (which is basically the eq.lib from the 50g for the prime). Also thanks to the prime's speed, Graph3D (a 3rd party 3D graphing application) is incredible.

[@stergeon8272]

I prefer the 50G in almost every aspect. The one issue for me is the 50G's terrible screen. Resolution isn't even the issue. I don't understand why HP used a screen with such poor vertical viewing angles on a calculator. I use it flat on a desk, so it's always viewed at a vertical angle.

[@IExSet]

My smartphone is always faster and have better screen, i don't need another smatphone, it is not calculator it is smartphone without GSM module and worse screen. HP 48G IS calculator !

[@yukhnevich]

HP Prime runs on a NXP

[@mauriciolacruz]

The new Prime may be much more complete and faster (better in terms of functionality), but its build quality is simply light years away from the much older yet unbeatable 48 series.

[@Chrisschaab]

It certainly feels less sturdy, although I've had my prime now over 2 years without any issues. Of course my 48 has lasted well over 20 with no issues. I worry about the battery in the prime, it's still holding a good charge but may be a pain to replace!

[@mauriciolacruz]

@@Chrisschaab Yes, that's another thing I don't like on the Prime: the built-in rechargeable battery. After a certain number of charging cycles it will die (like all rechargeable batteries), being also more difficult or impossible to replace. Besides, every charge needs hours, unlike regular AAA batteries that are replaced in seconds. (Bear in mind that also exist rechargeable AAA batteries).

[@IExSet]

@@Chrisschaab Main HP Prime covered with scratches just sitting on a table !!!

[@MrGinocon]

How is the construction and keys feel of the prime vs the 48gx?

[@Chrisschaab]

Hi, sorry I missed your comment. The construction seems solid and similar. Honestly the keys on the 48gx are a little more solid feeling on press. The Prime has real hardware keys with a definitive “soft-click”, that is to say you won’t question if you’ve pressed it. But it much less strong feedback than the 48s.

[@IExSet]

48gx is way better (i own both for collection) :-)

[@Chrisschaab]

It does have a certain quality and feel that I like. As I grew up with the 48 I find it’s menu’s easier to navigate, but mainly because I read the whole manual cover to cover in college.

[@phillipmay2541]

@@Chrisschaab if it just could have color and a backlight it would be unsurpassed among calculators :-) also thank HP for making the manuals available for download. I keep the user manual and the advanced user manual( with more detail on programming) on my phone as ebooks to complement the emulator app. It is funny, but I could barely afford e a 48g while in college but purchased the advance users reference asap when I had a real job after college then eventually got a 48GX from EBAY. Excellent documentation is another way HP shows that its products are the best choice for professionals.

[@odarge]

@@phillipmay2541 manuals WERE great,

[@IExSet]

@@phillipmay2541 Backlight eats battery VERY fast

[@oscardanieluribe9064]

Por favor, me recomiendan comprar una hp 48g, o una 48g+, habrá mucha diferencia?

[@RLAOSNET]

solo memoria, 48g tiene 32 kb y 48+ tiene 128kb

[@Fredexminas]

After 26 years, my hp 48g just died. My favorite calculador ever. Unfortunatelly, I have no idea who is able to fix It. 😭😭

[@Chrisschaab]

I don't know of anyone that repairs them. You could check the simple things like a disconnected wire or a capacitor with obvious leakage, but beyond that I think a "new" one on eBay may be your best bet! Let me know if you find someone to repair them!

[@moniack]

Won't turn on? Try pressing below the screen. There is a keyboard ribbon contact there that uses a piece of foam to push the contacts against the board. Eventually the foam stops pushing and making contact. I'm in the process of fixing mine- it's not simple due to not being designed for service.

[@ElAmigoCarlos]

HP Prime tiene un diseño que facilita mucho el trabajo, recomendable

[@victormosqueda100]

The screen of HP 48 GX sucks! Do not buy it. I used to have one and all of a sudden there was a kind of stain in it, now its totally useless

[@mauricioluisvega8342]

nice memories!....

[@wildflower401]

Video be like: Alright boys, today's topic is comparing dollar tree stuff to high end tec. Who will win. Watch the video to find out....

[@JacobRy]

TI nspire cx cas, all the way

[@rjy8960]

Why?

[@JacobRy]

its got everything you need, just google the calculator vs others you will see. also because i like the programming languages on it

[@jvanegas14]

@Asterix X it really sounds like you were set on hating the prime from the get go so you didn't even bother getting to know it. The HP Prime is basically a quantum leap in calculators; it is MUCH faster than any of it's competitors, much easier to program than the TI Nspire as well. The way the touch screen was implemented is intuitive and well done. The calculator's RPN mode doesn't lack for features; if you'd bothered to RTFM you would have known you need to put the variable in tick marks before you can store a value. That hasn't changed since the HP 28. As far as programming, PPL is much more readable than RPL, and it still offers all of the loop, control, and branching functionality of any Turing complete language. Not to mention how much faster it is as a language. A program executes on the Prime up to 200 times faster than an equivalent program on the 50g. The programming environment itself is actually pretty nice, despite the move to imperative syntax from the keystroke-like nature of RPL. It makes good use of the touchscreen, so you don't have to hunt and peck for common commands. It's fine if you don't like the Prime and prefer to use RPL, but that doesn't make it a bad calculator by any means.

[@jvanegas14]

@@JacobRy also I really don't agree with your complaints about the shifted keys: all the main trig functions get their own key, so do ln and log. Any scientific calculator worth it's salt has dedicated keys for the transcendental functions, which the Prime does. The x t theta n key is for the X variable i. e. the one used most often when crunching numbers/doing algebra. Honestly your complaint applies much more to the Nspire, where most of the operators besides very basic arithmetic are at least two keystrokes away, or more if you need to get to a function with the touchpad. One of my BIGGEST issues with the Nspire is that to access any trig function you need to hit the trig key first, and navigate over to the function you need. The touch pad is clunky and inaccurate, but that's just my opinion. The little keyboard at the bottom is almost useless for anyone with normal sized fingers, plus it's alphabetic; a sorely missed opportunity to have a qwerty layout. In fact, giving the Nspire a qwerty layout would do a lot to remedy the problems I have with it because you could easily just type up the function. Changing between exact (fractional) results and approximate results is also not as intuitive as it is on the Prime, where you just hit the a b/c key to switch between the two. Both calculators have a dedicated key for templates, but you can access a specific template on the Prime much faster by using the touch screen. The same applies for the library button on the Nspire; you need to navigate through tons of drop-down menus to get to the function you need. At least you can search for the function, so it's not that terrible.

[@jvanegas14]

@Asterix X I mean, if you were looking for RPN you bought the wrong calculator. The Primes RPN mode exists to help ease the transition from users of the 39/49 series. Yeah, the screen sucks. I agree on that. But I haven't had to sand my calculator down, I'm pretty sure that was more of an issue with the first hardware revision. I'll be frank. I love RPN, it's a lot of fun. But that's the only reason I can justify using it, because it's fun. To me, textbook entry is far more useful, because I can see both the equation AND the result. And if I mess up, I can just touch the equation to edit it. Keystroke efficiency is not a priority for me. What is a priority is confidence that I got the calculation right, and the ability to share my numbers with my colleagues without having to explain to them what a "stack" is. The Prime still has all of the functionality of the older graphing calculators, from the USER layer that lets you customize your keys to the ability to do arithmetic on everything from numbers to strings to lists. No, it doesn't come with an equation library any more. That's because HP targeted the education market instead of the engineering market. Hence the move to apps, and the addition of a touchscreen. Installing an eqn library is dead simple though, just drag and drop. Just like how you won't make the most out of a 50g unless you're in RPN, you're not going to get the full functionality of the Prime unless you put it in infix. I know some people just can't abide by that. But I didn't grow up with an obsession for HP calculators. I just needed a tool to get through engineering grad school and for that it's served me great so far. If I need to do serious number crunching I'll just pull up MATLAB or Python, both of which are infix notation anyways.