That is really weird.
Sorry about that ;-)
It’s ok, I may be able to live with it :)
Though sadly I have already had to tell some friends that I’m not involved in the project.
DB48X: High Performance Scientific Calculator, Reinvented
131–140 of 140 posts
Re: DB48X: High Performance Scientific Calculator, Reinvented
#132The 48G was a really good calculator, but only after loading additional software. The HP50g that came much later is better in every respect, except possibly for the smaller "ENTER" key (and people used to 48G will have to change some habits and possibly redefine some keys…). Incidentally, many young people (yes, I know how that sounds) do not know how useful a good engineering calculator can be and do not want to lea…
>steep learning curve
actually, shallow learning curve.
the steepness means "a lot of learning from a small amount of experience"
Re: DB48X: High Performance Scientific Calculator, Reinvented
#133A video explaining the philosophy and technology behind the project.
https://www.youtube.com/watch?v=jNOA39HnkcM
Re: DB48X: High Performance Scientific Calculator, Reinvented
#134The 48G was a really good calculator, but only after loading additional software. The HP50g that came much later is better in every respect, except possibly for the smaller "ENTER" key (and people used to 48G will have to change some habits and possibly redefine some keys…). Incidentally, many young people (yes, I know how that sounds) do not know how useful a good engineering calculator can be and do not want to lea…
Don’t mean to highjack but I was on the TI-89 camp, and I barely scratched the surface of its programming capabilities and memory. But it did help a lot with earthquake engineering and other mechanical dynamics courses in the university. Chugging a 6 kg laptop was impractical and this little TI was a beast!
The Voyage 200 gives me such good memories. It was a TI-89 with more RAM, bigger screen, and full QWERTY keyboard. I must have spent hundreds of hours in engineering school using that for all kinds of uses. Most notably was typing in mesh or nodal linear equations in the way you see them in the textbook and having it solve for me without having to create a matrix.
Re: DB48X: High Performance Scientific Calculator, Reinvented
#135Could this run on a TI or a NumWorks calculator? RPN: Reverse Polish Notation: https://en.wikipedia.org/wiki/Reverse_Polish_notation RPL: Reverse Polish LISP: https://en.wikipedia.org/wiki/RPL_(programming_language)
In theory yes. In practice, the TI 83/84 are probably not beefy enough, and the NumWorks has a keyboard that makes the endeavour really complicated.
JupyterLite includes SymPy CAS, Pandas, NumPy, and SciPy in WASM (Pyodide) in a browser tab; but it's not yet easy to save notebooks to git or gdrive out of the JupyterLite build. awesome-jupyter > Hosted notebooks; Cocalc, BinderHub, G Colab, ml-tooling/best-of-jupyter
It's also possible to install JupyterLab etc on Android with termux: `pkg install proot gitea python; pip install jupyterlab pandas` iirc
But that doesn't limit the user to a non-QWERTY A-Z keyboard for the College Board.
jupyter notebooks can be (partially auto-) graded in containers with Otter-Grader or nbgrader; and there's nbgitpuller or jupyterlab-git for revision control or source control in (applied) mathematics
Re: DB48X: High Performance Scientific Calculator, Reinvented
#136Re: DB48X: High Performance Scientific Calculator, Reinvented
#137Earlier quoted context omitted.
> No, this is not replaced by typing "python" (or "bc", or anything else, really) at your command prompt. Why not? At least I can easily copy the results and the code to a document which avoids transcription errors. Or do you mean that there simply isn't a program that has the functions you use?
> Why not? Keystroke count and progressive computations. Let me illustrate using an example from a YouTube video called "The hardest Exam Question : Only 6% of students solved it correctly" ( https://www.youtube.com/watch?v=NfgEPsm9Jzw ), which is about a simplified formulation for (sqrt(2)-1)^10. The first remark is that a CAS-capable calculator like DB48x can help with the symbolic part of the computation shown in…
> This is also true with the DB48x simulator,
You moved the goalposts. The original discussion was about calculators not emulators.
Re: DB48X: High Performance Scientific Calculator, Reinvented
#138The 48G was a really good calculator, but only after loading additional software. The HP50g that came much later is better in every respect, except possibly for the smaller "ENTER" key (and people used to 48G will have to change some habits and possibly redefine some keys…). Incidentally, many young people (yes, I know how that sounds) do not know how useful a good engineering calculator can be and do not want to lea…
I'm one of the last people at my workplace to use a calculator. I'm a scientist, not an engineer, so I use a scientific calculator. ;-) The schools ruined calculators. I still find a calculator handy, even when I've already got Python going on my PC. It's easier to use the calculator with one hand, especially in the workshop. You can get a Casio solar at Target for 10 bucks. My wife really prefers RPN, so I gave her…
You can get one of SwissMicros, that what I had to do to get RPN back
Re: DB48X: High Performance Scientific Calculator, Reinvented
#139Earlier quoted context omitted.
TBH TI-89 titanium is a better engineering calculator since the UI is way better. I have both a HP50G and a TI-89 titanium and I've done way more useful engineering work on the TI-89 titanium just because it's so much easier and accessible. Also of course, BASIC is a lot easier than reverse polish lisp for making some quick scripts. Also I will add, there are known symbolic math issues on the HP50G due to the CAS sys…
Got both as well (TI-89v2 and hp50g). TI-89 preferred by far. hp50g UX is bad, particularly the latency makes me sick.
Somehow the TI-89 had _both_ snappiness and relatively advanced 2D math display.
The TI Nspire CAS is the pinnacle of calculator UX, though - crisp , large, and hi-density LCD, beautiful math formatting, and dedicated alpha keys. I’d rather be doing symbolic stuff with that. In college physics it saved my ass by doing unit analysis on my answers as a double-check, converting units to base SI units and then doing as much simplification as possible.
Re: DB48X: High Performance Scientific Calculator, Reinvented
#140Earlier quoted context omitted.
I don’t use the physical HP50G i have that often, but i love it emulated on the phone. It’s for semi complicated quick calculations where scientific calculator interface really shines compared to anything else available.
What emulator do you use? I'd really like to run HP50G on iOS, but the only emulator I know was abandoned years ago (I got the source just in case, but it's a lot of work to fix the issues and build it).
Yeah, turns out i mistyped a bit. The emulated one is not 50G but HP49G+ (i use iHP48 app to do it)