I just created the following screencast for you: kzfaq.info/get/bejne/ntljY62EutyrlKM.html

i guess Im randomly asking but does anybody know a tool to log back into an instagram account..? I was stupid forgot my login password. I would appreciate any tips you can offer me

@Abdullah Chris Thanks for your reply. I found the site thru google and Im waiting for the hacking stuff atm. Takes quite some time so I will get back to you later with my results.

Thank you for making time to let me know your 12c Gold battery life. Twelve years is excellent! 👍

Thank you for watching and for you very kind words, Allen.

Thank you for watching and for your kind words, Nancy. I'm sure the 12c will be a big help to you in those finance classes!

Great review! The HP 12C Platinum is an awesome unit and has served me well over my 34 years in corporate financial management with the Fortune 100s. I'm a retired CPA/MBA now, but my 12C was literally my partner in crime at work. I'm sure you'll find the 12C equally as beneficial in all your college coursework! Best wishes to you and continued success in all your future career aspirations. Best regards

I sincerely apologize for not seeing your comment until today. I never received an email notification about your comment, which is why. The Z and T stack registers are only used for intermediate calculations, as described in the 12C manual in Appendix A, The Automatic Memory Stack: h10032.www1.hp.com/ctg/Manual/c00363319.pdf

Thank you for your kind words. I must say, it’s pretty unusual for someone to steal calculators. Are you in an educational environment?

@@JDW- I am a software engineer, but I was a math grad student at the time. Someone broke into our apartment, and unfortunately my calculators were among the stolen goods. I loved the 48sx, more a pocket computer than a calculator really, and the 11c was perfect for daily use. These days I deal more with computer math and logic, and I have an old CASIO CM-100 next to me on my desk. But I really miss RPN and RPL. From the looks of it, even HP has abandoned RPL so I want to get one of their last available models before they are gone.

@@JDW- It looks like the HP-35S is still available on Amazon, although I think it might be a discontinued model. Do you have any experience with it?

@@gaius_marius I've never used a 35S myself, but it's a fine scientific calculator if you don't need graphing and if you don't mind the limited 2-line display. If you want to knock your socks off with a full featured RPN scientific from HP though, you'll need to find a 50g. They no longer make those and unfortunately resellers have jacked up the price significantly, but it remains an amazing calculator that is an off-shoot of the 48-series, yet much faster. They keys aren't quite the same as the old 48 series, with a more flat and rubbery feel. It's not bad, but something to note for those who love the old 48. Many people still prefer the 50g over the HP Prime due to the 50g being a more consistent RPN scientific.

@@JDW- Thank you for the recommendation of the HP-50g. It looks like a very nice machine, and it would be a worthy replacement for my 48sx. Currently prices for a "new" one on eBay are ~ $500USD. I will keep an eye on it to see if I can get a used one in good condition.

A truly beautiful explanation of why a physical calculator is needed. Thank you for making time to share that! It's excellent!

Thank you for watching and for your comment. I assume you have 10 of them because you purchased the original 1981 version along with many other variants that came out over the past 39 years, correct? Also, if you have your Heron's Formula program for the 12C posted somewhere online, feel free to post the URL to that, as I am sure it would benefit other 12C owners.

Thank you for your kind words, Luiz. Here's a handy comparison chart, if you are pondering the 12c series versus the 17BII+: www.hpcalculators.nl/vergelijkingen/vergelijk_financieel_hp.pdf

Thank you! That’s a very nice comparison table. I have a HP12C and 17bII+ and I loved. Also I have a HP10s+ scientific. These equipments covers all disciplines of my administration course.

@@JDW- So the best one is the hp17 but everyone keeps considering the 12c better. This is weird. (the Yeld to Call feature is not a quirky useless function to have).

But is the HP 17B series really “best”? What makes a product best “overall”? Is it only features, or does design play a role? Not only is the HP 12c an iconic design, but it’s also much smaller and more compact and more easy to tote around than the HP 17B series. That plays a large role in the decision of which calculator is best. In the end, we are all different and each have our own sense of what’s better than something else. But for many people, size and the look of a thing matters.

@@JDW- oh well, for sure! Thanks for the reply by the way.

Obrigado por suas palavras gentis, Nathan!

Thank you for your kind comment, and for watching the whole video. :-)

Well, thank you very much for the kind words and for your Subscription!

The Amazon purchase link I provide in the text description, to which you are referring, is this: amzn.to/3dblYeE The Amazon description says it is Model No. 113394 and requires 2 batteries. Interestingly, if you download the HP 12c Platinum manual from the HP calculator website, you see that it is dated 2005/8/1 and mentions that edition has only 1 battery. Amazon has a separate product web page for the 1 battery version here, selling for a cheaper price than the 2 battery version: amzn.to/3z0rL1i I updated the text description just now with separate links to both so everyone can decide which they prefer.

I perpetually overlook the obvious. Thank you for the tip!

Congrats on your 12c purchase! I would suggest going through this quick start guide if you haven't already: images10.newegg.com/UploadFilesForNewegg/itemintelligence/HP/hp12_guide1520003234729.pdf

@@JDW- thanks, it comes with a CD and a manual but your PDF would be more handy.

Your 12c is from the 80's, or do you mean it is one of the newly manufactured 12c models? If yours is from the 80's, I am curious if the newly manufactured 12c models available on Amazon today have the same key feel and sound as the Platinum, or if they are more like the 1980's edition keys. I suspect it might be different, but only an owner of both could compare and say. Anyway, thank you for your input. It's much appreciated!

@@JDW- Sorry, just now saw your reply to my comment. My 12C is from the mid 80's and still running. I don't know how the standard 12C keys are now, but about a decade ago I had an opportunity to play with one and it had the softer keys too. Not quite the same as mine, but closer in feel. The big difference I noticed was that the keys were a bit wobbly. I had read elsewhere that the Platinum series had harder keys and your review bears that out. I also have the Prime and love the keys on it. Thanks for your reviews, I really enjoy them.

@@stockscalper Thanks for your follow-up reply, Jon. The 12CP tested in my video did not have wobbly keys, for what it's worth. The keys feel nice on the unit I reviewed, but they are a bit loud. Keys on my 48GX have a softer yet firm feel that isn't wobbly or loud. My 50g is softer still and very quiet, and I certainly don't mind the feel, but I've heard that some people dislike it, preferring something like the 48GX instead.

Thank you for that keen observation. I suppose it's is akin to me telling somebody it's Oct. 11th here in Japan right now, when it's still the 10th in the US. The dates here in the Far East don't always match up! :-)

JDW It’s just that the year 1977 is kind of well known among Star Wars fans, so it’s a bit jarring to hear it described as a film from 1978

@@MightyJabbasCollection Understood. We Star TREK fans sometimes get it wrong when it comes to Star WARS. :-) Thank you again for the correction.

That's really the main thing for me -- the keys! RPN and functions are very important -- don't get me wrong. But I've used HP calculators continually since 1989, and I have a lot of expectations when it comes to (1) key feel while pressed, (2) the shape and aesthetics of the keys, and (3) the sound each key makes (if any). I think the Swiss Micros folks have a lot of brilliant software and hardware designers doing some amazingly great work, but they need to investor more in the industrial design of the keys. That's they way they can win my heart and no doubt many other die hard HP lovers too!

@@JDW- I've used HP for a long time, I get frustrated with just looking at a TI. I forgot my HP for an exam and had to pick up a 36XPRO from the bookstore. I was about to smash it into a wall with all the menus and rickety buttons. I see them like this: HP=Cadillac (like sitting on a marshmallow riding on a cloud) Swiss Micros= Sunbeam Tiger (big power, rigid chassis, corners sharper than you expect) TI= Hooptie (pray it doesn't fall apart when you push the key in) Casio= Honda Civic (will just run forever)

@@victoriabrockman5473 Precisely why it's so very sad that HP allowed their calculator division to languish, allowing TI to put its death grip on the educational market for calculators. They let the inferior calculators win significant mindshare among students and educators. And although we can appreciate that Swiss Micros exists, a large part of their sales are to those of us who even know about RPN and the joys of older HP calculators. Swiss Micros isn't marketing to compete with TI.

Thank you for performing that calculation and sharing the result!

Thank you for the tip. This is true about most things in life. There are an endless array of shortcuts that can make our lives easier. Feel free to share any other 12c tips that come to mind. I'm sure such will help others who either have or who are contemplating buying this great calculator.

😂😅

Thank you for that confirmation, Pat!

Thanks to technology advancement!

Well, perhaps that is why HP decided to allow users to switch to Algebraic mode on the 12c Platinum if they wish! :-) For people like me who started off with a scientific HP calculator like the 28S, at which time I learned RPN and came to like it, using or switch to another RPN calculator is as easy as a Mac user switching from a PPC Mac to an Intel Mac, because a Mac is a Mac. Anyway, the RPN vs. Algebraic debate has been raging for many, many years. So rather than rehash what has already been said, you might find the following discussion of interest: bit.ly/3lCAgbo

@@JDW- Yea, but RPN purism has largely consigned RPN to the dustbin of history! The HP50 was algebraic by default, but the designers clearly expected most users to immediately switch to RPN mode and only implemented half-assed algebraic because the marketing guys told them to (similarly to why it has a key prominently labelled 'FINANCE' which notably was never pressed when you showed a financial example!). By the HP Prime things have reversed - the RPN implementation is half-assed and clearly just there as a desperate attempt to appease the long-term HP fan-base! I really want to explore some ideas for combining RPN and algebraic and am wondering if any of the emulators are open-source and available for modification? The trouble with the modal switch on most of the later HP models is that it is all or nothing and there is no way to get the best of both worlds - it alters the whole personality of the calculator.

Guess why the success of HP48? Even with a graphical display people really enjoy RPN (don't get me wrong, HP48S users can enter said algebraic by first typing the quote key; and that's the way occasional/rare users use the calculator) …because it's error prone and faster (i.e. less keystrokes) and really natural (at least for old folks that have been using pencil and paper or black board and chalk for calculation for years) In my case, math formulas (either by teacher or by books) are in "textbook" form, what make algebraic irrelevant (one couldn't just "copy"/retype as is…) Enter is not required per se in pure RPN; it just ask for evaluations (like on every calculators I've met). What I mean is that on 48 graphic calculators, you may type "4" then "Enter" (so evaluating it to itself and putting it on the stack) then "3" followed by "Enter" again (so putting also to the stack) then type "+" (so evaluating the addition of those two levels of the stack) ; but advanced users type "4" then "Enter" then "3" and directly "+" (like here) ; but some may prefere "4" then "Space" then "3" then "+" (note the space key instead of enter key, for no time waste to temporary put in the stack for no reason) That's not "Enter" which is implicit and it has the same role in every mode. HP was also the first to introduce the said textbook (first by showing the equation in all S/SX/G/GX/gII viewer, later a library allow displaying it so on the stack of G/GX/gII, and that have been incorporated to 49 serie) and an equation-writer (on all S/SX/G/GX/gII and others) which is neither RPN nor algebraic (but the final result is algebraic) From studies here and there, different modes can't really be mixed (one always ends to impossible situations sooner and I think it's normal because we always achieve a task in one mode -but can switch to another mode for another task) But HP did its possible to allow and ease switching. Do you have some interessant usecases?

One can speculate that is true, but since I did not have a 60x faster modern 12C with which to compare, I cannot say how long its battery life is. Faster sometimes means short battery life, but it really depends on how well the board sleeps that fast processor. It will also vary by the kind of batteries you use, for example, alkaline batteries offer shorter life than the more expensive silver oxide.

There is no logical correlation between a calculator not fitting one particular shirt pocket and its electronic functionality being inadequate as a result.

It's a great calculator! Maybe try a different shirt?

Thank you for your kind words. I used a Panasonic GH5 camera in the 10-bit 4K HLG profile to get the maximum dynamic range. If you are using Safari on a Mac, you can only get 1080p resolution, but if you use Chrome, you can see it in 4K. As to comparing the 17BII+ to the 12c, you might find this side-by-side feature chart of some help, but keep in mind the physical size of each calculator is still an important consideration: www.hpcalculators.nl/vergelijkingen/vergelijk_financieel_hp.pdf

@@JDW- Thx for the reply. Your GH5 is amazing indeed. My browser is a Firefox on Windows 7 Pro and I could see the inside your eye! Your overhead shot was so precise with mind boggling sharpness. I just will not give up my Windows 7 although I have a Win 10 machine as well, just like some of these calculators! Like you say, there is so much joy and usefulness in having something tactile and without distractions and powerful! Thanks for the comparison link .. the HP 17bII+ seems to have many more features bulleted. Have to figure out how to program metric conversions and that would make my life complete with this calculator! Any ideas where to look in the manual for that? Have a great day!

@@melodychest9020 You'll find Unit Conversions on page 178 of this PDF: h10032.www1.hp.com/ctg/Manual/c00363348

@@JDW- Awesome bingo! Made my day, thanks a ton. Have a great day!

@@JDW- Thanks again .. now that I have been playing with the HP 17BII+ I am missing a better screen to work easier with as the screen on this one is hmm.. no too crash hot. So, if one wanted a better larger (touch if possible) screen for financial calculations with solve etc. what are the options that HP has? I am sure you know. The HP Prime is more for scientific right? Is there a financial one like that? Cheers.

Being an EE by trade, I am not an expert in solving all problems on this financial calculator. I don't mind if you post your problem here, but honestly, Google picks up the HP Museum forum and not KZfaq comments, and I feel that any talk about math problems and solutions would benefit others in your shoes, so if it isn't too much trouble, I would strongly recommend that you post over at the HP Museum forum, where I am a member. That way many other people can find the problem and ultimate solution. Here's the forum URL: www.hpmuseum.org/forum/forum-4.html

True, but try carrying around the 12cP in your front pocket for a while. Much easier to tote around! :-)

I think SwissMicros are great, and that's why I already have a link to the DM12L in the text description. There is a difference between key look, feel and sound though. Beside that, there is a lot of nostalgia for HP calculator lovers, which is why the 12C and 12CP still sell.

I have (among many, many, other calculators) a DM42, which unlike the rest, has a spot on my desk. It is a fantastic calculator that's built like a tank, and is a thing of beauty.

I no longer have the calculator in my review because it was borrowed from a friend for the express purpose of doing the review. Even so, the HP 12C manual tells you what you need to know here: www.manualslib.com/manual/277108/Hp-12c-Platinum.html?page=53 If you need additional help, I strongly recommend you join the HP Museum Forum because it has a great community there: www.hpmuseum.org/forum/forum-4.html

@@JDW- Thank you very much

Thank you for your question. I just tested the actual 12C Platinum for you. If you type 5.56 and then press "g" & "-" (backspace) twice, you will delete the .56 part. After that, if you press "g" & "÷" (undelete) once, you will restore the deleted 5 and if you do it a 2nd time you will restore the deleted 6. I verified it works on much longer numbers where more digits are deleted too. The little curved arrow indicator remains display until you have undeleted all deleted characters in memory.

Thanks for watching the entire video. The 12C is a fun calculator indeed.

same. people under this videos (me included) are such nerds! 😂

The video is indexed, which allows you to jump to different sections. Specifically, 19:35 is the section on Key feel and sound among different HP calculators. However, I don't have an old 12C with which to compare, although I do show my 48GX.

@@JDW- Thank you! 😊👍🏻

I've had 3 models of HP12C, where one is an old 12C, one is Platinum, and one is a modern 12C (which I gave away to a friend because I use it on daily basis, and I thought he'd like it as well). It's hard to describe the slight difference in terms of sensations when you hit a key on a 12C and a 12C Platinum. But, wether you pick a 12C old generation or a 12C Platinum, you can't go wrong. They're all good. And, having an old 12C made is USA that is free of scratches certainly brings some satisfaction, but I can swear you I have no doubts on the capacities that Chinese suppliers have to perform quality controls and issue fantastic products. I've never had any issue so far.

Posting your question to the HP Museum Forum should get you an answer in short order: www.hpmuseum.org/forum/forum-4.html

I don't remember. But with it now being 3 years into the FUTURE after the making of the video, I guess it makes sense I should have. 🙂

The finance registers were cleared before starting the calculation so there is no need to enter the future value as it is already zero.

Procedure to toggle display of Date/Time on the 48GX: 1. Turquoise Right-Arrow button (press & release) 2. CST (MODES) 3. Down arrow 3 times, then Left arrow 1 time (to select Clock) 4. CHK (soft menu) 5. OK (soft menu)

Well, I don't have an audio meter with a dial indicator, and since this video is primarily about the calculator and not audio, I felt my testing was adequate. I did try to ensure the mic distance was the same for all testing, and the audio test results closely represent what my ears actually hear. I still feel my testing is quite decent because there's not another KZfaq video out there which goes as far as I did to demonstrate the sound of the keys. What people hear in my video really can help one make an informed buying decision, when considering use of the calculator in a quiet environment. When in a noisy room though, it then becomes more difficult to identify which calculator keys are louder.

@@JDW- dont get me wrong, your video was great, these were just suggestions for a more accurate test comparison

It's definitely metal, and I think it's aluminum.

@@JDW- I asked in another video and he replied he thinks (because it looks) plastic.

@@mauriciolacruz I shipped the calculator back to its original owner earlier this year so I cannot check it now. But as I recall, the silver part was very cold to the touch (more than the black plastic body), which indicates it is metal, not plastic. It also seemed like very lightly brushed aluminum. I doubt plastic would have such a texture to it.

@@JDW- Yes. The temperature is a good indicator. Do you know how I test it? Touching the item or parts in doubt with my upper lip (right above the lip). That part of the body is very sensible to temperature, far more than fingers. Could you please anyway ask to your friend?

@@mauriciolacruz It could be easy to test with a digital multimeter because you set the meter to Continuity mode then put the RED probe on one side of the silver panel and the BLACK probe on the other. If you hear a beep, you know it's metal. No beep means it is either plastic or the metal has some kind of transparent coating on it.

I did a review of the HP 12CP only because the owner of that calculator kindly shipped it to me and then paid for the return shipping back to him. So in the future, if a TI NXPIRE CAS II owner does the same, then I would be willing to do a review of that calculator as well.

The number of visible stack lines on the LCD depends on the font size you select. It is possible to show more than 5 with a small font. And keep in mind the actual stack (memory) is larger.

Since you are commenting under my video, can I assume your “too hard to use” calculator is a 12c? If so, perhaps you are unfamiliar with RPN and just need to switch it to Algebraic mode. I cover that in my video.

Correct. My mention of 1978 was in error because it was indeed released in the USA in 1977, although it was released a year later on June 24, 1978 here in Japan.

In terms of this compact form factor, as an engineer, I would of course prefer the 15c to the 12c. Naturally, accountants would disagree. Even so, it's rather hard to pull me away from my 50g. 🙂

@@JDW- I still have my 15C and I use it to calculate expenses each month. I seldom use the 50G and I'm an engineer too. I will get the 12C Platinum for my stock portfolio as a present to myself.

@@thomaseriksson6256 The 15C was required for the courses in Electronics at PPCC (home of the fighting Aardvarks!). At first I didn't want to spend a good sized chunk of my weekly paycheck in 1986 on a calculator that I saw no advantage to owning, but I fell in love with it in no time at all. Still my favorite. And the HP-16C is a great one as well. The HP-15C Simulator by Greg Hewgill is always added to every PC that I use. It is fantastic as well. Give it a try. And the Swiss Micro DM42 is quickly becoming one of my favorites as well.

@@MrWaalkman I still have the15C and I use it at home. Just got the HP12C Platinum for analysing stocks

I'm afraid I don't understand what you mean.

@@JDW- i am sale caculator

@@nabilasb4394 I recommend you post your calculator for sale on the HP Museum Forums here: www.hpmuseum.org/forum/forum-6.html

I am a lover of details, and so are my channel subscribers. When people want 3 brief minutes of mostly entertainment, the are more than happy to visit the countless other channels out there which offer that. But I spend a lot of time making videos that I wish others made for me, and that includes all the glorious detail. To make it easier for people to jump to sections that interest them, I manually INDEX all my videos. And if you jump to a section and find it too slow for your liking, KZfaq allows you to watch it at higher speed or fast forward. While I appreciate your feedback, the vast majority of people prefer to the meaty content and commentary on my videos. Indeed, that's what my channel is all about. Best wishes to you as you seek similar content on HP calculators though. Sadly, there isn't a big selection of high quality 4K HP Calculator related content to go through here on KZfaq.

@@JDW- whatever dude. if you have subscribers that like your style then more power to you. Maybe you can start showing how you throw away the plastic shell in the trash. Then show how you take out the trash. Then show how the garbage truck picks up your trash! your followers will love it!

@@tonymaric3235 😂Quite funny. But of course, I am undeterred. We each must find our own path in life, an DETAILS are what differentiate my channel from the 3 brief minutes of entertainment that miss a lot of content, some of which is quite important. Anyway, best wishes to you on your HP calculator journey! 👍

Wikipedia allows anyone to contribute, which opens the door to misinformation. While I didn't work for HP, nor can I offer 100% clear evidence as a result, I do see your URL links to the following page as its source, which says in the opening paragraph "COMPLEMENTARY METAL-OXIDE semiconductor (CMOS) technology plays an important role in many recent HP products. Most of these products use the silicon-on-sapphire (SOS) form of this integrated circuit technology.": www.hpmuseum.org/journals/hp41/41bc.htm