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Ti-84 Evo

education.ti.com

211–220 of 503 posts

Re: Ti-84 Evo

#212
I personally think this is stupid (e.g., the new interface for selecting functions). The interface on original 84 was better. I still have mine from 15 years ago. I still use it.

Re: Ti-84 Evo

#213
post #86

From here: https://www.cemetech.net/news/2026/4/1062/_/ti-84-evo-calcul... > 3x Processing Power - Matching one of the speculated options, the calculator appears to use an ARM Cortex CPU, finally retiring the z80 and ez80 family of CPUs that were used in three decades of TI-83 and TI-84 Plus graphing calculators. It's running at 156MHz, compared to the 48MHz of the older calculators. It appears likely that in an unex…

Fun memory trip. Learned assembly on those old Z80s in middle school. I had to go re-dig up SafeGuard, a program I made by reverse engineering TI's TestGuard, to stop admins from wiping your calculator memory and all your games! https://mikeknoop.com/upload/safeguard/

Re: Ti-84 Evo

#214

Earlier quoted context omitted.

My mom once was getting ready for work and I hear a pop and hear my mom yelling. I go in and her necklace fell off the dresser; a "dust buster" wall wart was plugged in back there and it fell across the prongs, shorting it out.

This is why you always mount outlets with the grounding pin facing up!

How does that help?

Re: Ti-84 Evo

#215

Earlier quoted context omitted.

My mom once was getting ready for work and I hear a pop and hear my mom yelling. I go in and her necklace fell off the dresser; a "dust buster" wall wart was plugged in back there and it fell across the prongs, shorting it out.

This is why you always mount outlets with the grounding pin facing up!

... it was an ungrounded plug... Plus it was a chain, so it'd drape across all 3.

TBH, in the house I mount them ground down, but under cabinets or in the garage/shop or etc I mount it ground up.

Re: Ti-84 Evo

#216

Earlier quoted context omitted.

The interface is great for what it does though. I still use ti-83 interface with the calculator app on my phone.

Yeah I guess I should correct and say that I do use an HP 50G emulator on my iPhone cuz I like RPN. But even still, the iPhone can do many things and is many times more capable, and you can buy a used iPhone 12 that works fine for about the same price as one of these calculators.

HP 48G(X) is the OG and what I took SAT-I and AP Calculus BC exams with. The iOS/iPadOS emu app is called i48.

Re: Ti-84 Evo

#217

About 25 years ago my parents got me a Ti84 as a surprise for Christmas and they hid it in the attic so I couldn't find it in the meantime. A few months went by and a couple days before Christmas, when it was time to wrap the presents they couldn't find it anymore. My dad went out and got a Casio something as a late minute replacement, and that was the calculator I used in high school and I never knew about this stor…

My dad got a free palm pilot m125 or something and I used a ti/HP calculator emulator on it since my parents thought buying a $99+ calculator was too expensive. fun writing apps in basic for that thing and the games for it were the best mobile ones. I did envy people with Mario and drug wars on their calculators though.

Re: Ti-84 Evo

#218

Earlier quoted context omitted.

I certainly got a lot of educational value out of mine. I managed to program a fully functional Minesweeper game on mine, using the built-in programming tools - no transferring efficient binaries via cable! But yes. 99% of what we did with them in class - when we were even allowed to use them - could have been handled by a little solar-powered calculator with basic arithmetic functions.

You could get that same educational value from programming things on a smartphone.

What's your favorite free programming environment for commonly used smartphones?

Re: Ti-84 Evo

#220

What calculators are you guys using that aren't in academia anymore and don't need the "exam approved" limitations? Or are we all just using software on our computers now. That would be sad. (I've had a Casio fx-991EX on my desk for a few years, that replaced a broken Casio fx-991ES. Though designed for academia, its operation is burned into my brain at this point.)

If I’m reaching for calculator, I’m reaching for my phone.

At that point I’m either using the stock iOS calculator or iHP48, HP48 clone.

It mostly depends on which page of apps I’m on and which is closest.

I like the unit conversion on the iOS calculator, easier to use for trivial calcs than the HP.

Biggest gripe on iOS is a single memory. On the HP I’m mostly hooked on the infinite stack, and that’s why I use it over the HP-42 clone app I have as well.

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