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C47/R47 Calculators

34 points by helterskelter 4mo ago

raffael_de 4mo ago
From 2025 and order process is defunct.
- deleted 4mo ago
  [deleted]
- deleted 4mo ago
  [deleted]
- skywal_l 4mo ago
  here you go: https://www.swissmicros.com/en/products/r47 https://www.swissmicros.com/en/products/r47
- helterskelter 4mo ago
  It was restocked the other day, SwissMicros had an issue with the button domes and had to wait for replacements to come in from China which took awhile because of Trump/Iran.
  - helterskelter 4mo ago
    I forgot to add that development is active: https://gitlab.com/rpncalculators/c43 https://gitlab.com/rpncalculators/c43
zokier 4mo ago
There is also another major DM42 firmware project: DB48x https://48calc.org/ https://48calc.org/
loloquwowndueo 4mo ago
Still looking for the perfect replacement for my HP48GX which died a mysterious death. Actual 48GX are hideously expensive and I’d be concerned they could also just mysteriously kick the bucket.
- whartung 4mo ago
  Today, the thing that makes the HP48 series much less useful is simply that they lack a backlight. I find them simply difficult to read and use today because of that. So, I just use a HP48 app on my phone. It's not as good, lacking the tactile response of the keyboard. But it's close. I used to program the 48's. You think laptops are convenient, wait until you try coding in bed on a 48. Very comfortable, if you can stay awake :).
  - loloquwowndueo 4mo ago
    Dunno man, I did just fine with my 48 and I do just fine with the crappy lcd scientific calculator I have now, but it’s basic and doesn’t hold a candle to the 48. Did do a fair bit of programming in the 48 too :) fun shit.
    - dmd 4mo ago
      “Your body doesn’t work perfectly? Dunno man, mine does.”
      - loloquwowndueo 4mo ago
        Well - parent didn’t say “the thing that makes it less useful _for me_ is lack of a backlight”, but a categorical “it’s less useful for everyone due to lack of a backlight”.
- NetMageSCW 4mo ago
  iHP48 is a good app for 48 emulation. Also, the HP-50G is a pretty good alternative that is newer though still discontinued.
sunpazed 4mo ago
I’m a vintage calculator tragic! I love what the C43/47 communities are doing in reviving RPL and RPN for a modern audience. What’s even more amazing, is that the DB48x calculator is a singular dev effort by the talented Christophe de Dinechin (I’ve contributed briefly to his code). If you’re curious to try out RPN/RPL without buying hardware, then both the R47 and DB48x calculators are available as apps on the iOS App Store. Those of you who want to go deeper down the rabbit hole, I strongly recommend you check out Calculator Culture — he reviews both modern and vintage devices; https://www.youtube.com/@CalculatorCulture https://www.youtube.com/@CalculatorCulture
sghiassy 4mo ago
Zero images on the homepage?
Cider9986 4mo ago
An open source calc! Btw calc stands for calculator, I'm just using slang. (https://www.youtube.com/watch?v=qy2fr9d5J3M https://www.youtube.com/watch?v=qy2fr9d5J3M)

C47/R47 Calculators

34 points by helterskelter 4mo ago

raffael_de 4mo ago

From 2025 and order process is defunct.

deleted 4mo ago
[deleted]
deleted 4mo ago
[deleted]
skywal_l 4mo ago
here you go: https://www.swissmicros.com/en/products/r47 https://www.swissmicros.com/en/products/r47
helterskelter 4mo ago
It was restocked the other day, SwissMicros had an issue with the button domes and had to wait for replacements to come in from China which took awhile because of Trump/Iran.
- helterskelter 4mo ago
  I forgot to add that development is active: https://gitlab.com/rpncalculators/c43 https://gitlab.com/rpncalculators/c43

zokier 4mo ago

There is also another major DM42 firmware project: DB48x https://48calc.org/ https://48calc.org/

loloquwowndueo 4mo ago

Still looking for the perfect replacement for my HP48GX which died a mysterious death. Actual 48GX are hideously expensive and I’d be concerned they could also just mysteriously kick the bucket.

whartung 4mo ago
Today, the thing that makes the HP48 series much less useful is simply that they lack a backlight. I find them simply difficult to read and use today because of that. So, I just use a HP48 app on my phone. It's not as good, lacking the tactile response of the keyboard. But it's close. I used to program the 48's. You think laptops are convenient, wait until you try coding in bed on a 48. Very comfortable, if you can stay awake :).
- loloquwowndueo 4mo ago
  Dunno man, I did just fine with my 48 and I do just fine with the crappy lcd scientific calculator I have now, but it’s basic and doesn’t hold a candle to the 48. Did do a fair bit of programming in the 48 too :) fun shit.
  - dmd 4mo ago
    “Your body doesn’t work perfectly? Dunno man, mine does.”
    - loloquwowndueo 4mo ago
      Well - parent didn’t say “the thing that makes it less useful _for me_ is lack of a backlight”, but a categorical “it’s less useful for everyone due to lack of a backlight”.
NetMageSCW 4mo ago
iHP48 is a good app for 48 emulation. Also, the HP-50G is a pretty good alternative that is newer though still discontinued.

sunpazed 4mo ago

I’m a vintage calculator tragic! I love what the C43/47 communities are doing in reviving RPL and RPN for a modern audience. What’s even more amazing, is that the DB48x calculator is a singular dev effort by the talented Christophe de Dinechin (I’ve contributed briefly to his code). If you’re curious to try out RPN/RPL without buying hardware, then both the R47 and DB48x calculators are available as apps on the iOS App Store. Those of you who want to go deeper down the rabbit hole, I strongly recommend you check out Calculator Culture — he reviews both modern and vintage devices; https://www.youtube.com/@CalculatorCulture https://www.youtube.com/@CalculatorCulture

sghiassy 4mo ago

Zero images on the homepage?

Cider9986 4mo ago

An open source calc! Btw calc stands for calculator, I'm just using slang. (https://www.youtube.com/watch?v=qy2fr9d5J3M https://www.youtube.com/watch?v=qy2fr9d5J3M)