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Ask HN: Are any modern TI calculators as reactive as the TI-84 Plus?

1 points by hereforphone 5y ago

I have a TI-84 Plus, and had a TI-89 Titanium. I never used the TI-89 despite its feature set because it wasn't reactive. I like to turn on the calculator and immediately start entering data, and that wasn't happening with the TI-89. I see there is a newer version of the TI-84 (CE Python) and I wonder if it handles more like a TI-84, or like a TI-89. Are there any other (modern, and preferably rechargeable) calculators that I should consider?

PaulHoule 5y ago
https://www.hp.com/us-en/campaigns/prime-graphing-calculator/overview.html https://www.hp.com/us-en/campaigns/prime-graphing-calculator...
- hereforphone 5y ago
  So when I turn it on I will be able to start typing immediately without the delay of the TI-89? You've tried this calculator?
  - PaulHoule 5y ago
    I hit the "ON" button and the screen lights up and it is responsive in less than 1s. I hit "ON" and immediately typed a number without waiting for it to light up and the number appeared exactly as I typed it. I complain incessantly about devices that are laggy and I don't feel any lag with it.
    - hereforphone 5y ago
      Thank you. If you could compare it to the TI-89 lag I'd love to hear it. Regardless I really appreciate what you just took the time to write.
- hereforphone 5y ago
  It's not obvious from the page how much calculus it can do, and if it can solve algebraic equations. Or how much linear algebra it can do.
  - PaulHoule 5y ago
    The manuals are online: https://support.hp.com/us-en/product/hp-prime-graphing-calculator/5367459/manuals https://support.hp.com/us-en/product/hp-prime-graphing-calcu... There is also an official emulator you can download for free which will give you some idea if you like it: http://www.hp-prime.de/en/category/13-emulator http://www.hp-prime.de/en/category/13-emulator
    - hereforphone 5y ago
      Thank you
stevetarzia 5y ago
I'd recommend looking at a cheap TI-36X Pro. It's solar powered and responsive. It's not a graphing calculator, but it has the nice graphing-calculator features most people really need (movable cursor and multi-line display with scrollable history).