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Ti-84 Evo

education.ti.com

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Re: Ti-84 Evo

#381

Post by broadsidepicnic »

vvpan wrote: post #38

We had to buy those calculators for highschool and it was a waste of money, felt like somebody must be paying somebody off to have thousands of students buy a device that they will certainly never have to use (and is of little educational value).

TI-86 is the one in my case. We had to buy it in high school, and I used it so much in high school and in university after (I still have it in a box), that it's the only calculator I've since used. I absolutely have to have a TI emulator on my phone, and have paid for multiple ones along the years.

I use my emulated TI-86 every other day, and prefer it to any other UI I've seen on calculators on phones.

When I have a laptop available, I of course use excel or wolfram alpha for anything demanding, but when on the go, I like my emulated TI-86.

Re: Ti-84 Evo

#382

Post by joquarky »

radicalcentrist wrote: post #266
Archelaos wrote: post #244

Earlier quoted context omitted.

On 9 July 1537, Martin Luther wrote in a letter to Wolfgang Capito about a lost golden ring: "Pro annulo aureo gratias tibi agit mea Catharina, quam vix unquam magis indignatam vidi, quam ubi sensit, cum vel furto sublatum, vel sua negligentia (quod nec mihi verisimile est, licet usque ingerenti) amissum, quod persuaseram ei, hoc donum esse felix omen et augurium ei missum, tanquam nunc certum esset, vestram Ecclesia…

Are we expected to know latin, or is this supposed to be a little homework assignment for us? Ridiculous.

FOMO burnout is real.

Re: Ti-84 Evo

#383

Post by ActorNightly »

the-grump wrote: post #272
ziofill wrote: post #153

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…

Every time I see a post about the TI calculators, I think about how much I dislike their interface, and it's all because I started out on a Casio.

I had a Casio that was multi color, because I thought it was cooler. Display was nice, functionality sucked.

Re: Ti-84 Evo

#384

Post by vanderZwan »

andrepd wrote: post #172
ndiddy wrote: 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…

>cemetech >Kerm Martian There's some names I haven't heard in a while :)

It's kind of weirdly comforting to see Kerm is still passionate about calculators after all these years, isn't it?

Re: Ti-84 Evo

#385

Post by MrBuddyCasino »

pizzafeelsright wrote: post #348
clamprecht wrote: post #271

My TI-85 story. While I was in prison, around 1996 or 1997, I found out a friend had a TI-85 calculator. I realized it was programmable, so I borrowed it over the weekend and wrote a program to track his stock portfolio. It was the first time I had programmed anything in 2 or 3 years. Then I learned that the US Bureau of Prisons had a rule against any calculator (or device) that was "programmable". So I programmed th…

You're a hero of mine so here is my story. Me in math class in 1996 - I had a TI-82 things are programmable so I have no formal education, my parents are illiterate, and taught myself to program, and I begged them to buy me one. I spent time learning how to code on it, writing from scratch, the game Spyhunter. I couldn't figure out how to draw with lines or pixels so I used ASCII or text. I presented this to my teach…

Seems like everyone has such a story about a teacher. „No you can’t read more advanced books because the current ones bore you“ etc etc

What is the matter with these people.

Re: Ti-84 Evo

#386

Post by TiredOfLife »

scarecrw wrote: post #89

I'm surprised to see "Approved for Exams" featured so prominently, as handheld calculators for lots of standardized exams are being phased out. All of the exams listed are either already offered in a computerized format or in a transition phase, with the PSAT, SAT, APs, and ACT all already offering Desmos in their testing apps. I love handheld calculators, but, especially in a time-sensitive environment, it's hard to…

I am from an xUSSR country. And started school shortly after the dissolution. Not only calculators were forbidden in exams, they were forbidden in classes. So calculators in school seems so strange to me.

Re: Ti-84 Evo

#387

Post by globular-toast »

pverheggen wrote: post #179
kristopolous wrote: post #62

Show me a highschool math problem you can't do on a $12 Casio scientific like the classic FX-300MS https://www.usaofficemachines.com/csofx300ms-fx-300ms-scient... There's even knockoffs of it for $1: https://www.aliexpress.us/item/3256809744184708.html I picked one up when the 99 cent store was shutting down. It works fine. Look what you can get for $20: https://www.casio.com/intl/scientific-calculators/product.FX...…

If you count basic calculus as high school level, TI89's can do symbolic integration. They're usually banned on tests for that exact reason tho.

Can it do anything non-trivial? The algorithms for symbolic integration are extensive.

My Casio could do numeric differentiation and integration. I used this to double check my answers in my exams.

In fact, it still can as I still own and use it to this day.

Re: Ti-84 Evo

#388

Post by CydeWeys »

kstrauser wrote: post #292
Dwedit wrote: post #286

Earlier quoted context omitted.

The order was: TI-81 (1990) TI-85 (1992) TI-82 (1993) TI-80 (1995) TI-92 (1995) TI-83 (1996) TI-86 (1996) TI-73 (1998) TI-83 Plus (1999) TI-89 (1998) TI-92 Plus (1998) TI-83 Plus Silver Edition (2001) TI-84 Plus (2004) TI-84 Plus Silver Edition (2004)

Anyone here have an idea why the models jumped around like that? Like why'd the 82 come out after the 85, or the 83 after the 92?

One other factor that others haven't yet covered is that the different lines had different capabilities, e.g. the T-89 had Computer Algebra System symbolic manipulation meaning it could pretty much solve many types of math problems on its own, so it wasn't generally allowed in school. And then the Ti-85/86 was a step down, but had matrix support that the lower models lacked, so it was necessary for some specific types of classes.

My favorite was always the TI-85/86 line. I loved those F1-F5 buttons right beneath the screen, which made the interface overall better to navigate. The first programming I ever did was on one of those (either the 85 or 82, can't exactly remember at this point which I owned first). And, the only thing of note I ever had stolen from me was a TI-82, taken out of my unattended backpack by another student during gym class :( (And I had even carved my name into the back of it with a knife, so it would've been identifiable.)

Re: Ti-84 Evo

#390

Post by burnt-resistor »

arwineap wrote: post #257
burnt-resistor wrote: post #216

Earlier quoted context omitted.

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.

Android app is called droid48

Nice.

Also, one of the major (unique?) UX innovations of the physical HP48 (c. 1990) was that it could beam apps and data to other calculators over serial IR or RS-232 with a computer. (A DIY computer interface cable could be fashioned from Sony CD-ROM analog audio cable.) Furthermore, the IR LED on the HP48G(X) was so bright, it could be software-controlled as a very long range TV universal remote, and there was a learning universal remote app that could learn codes from physical remotes by reading from the IR receiver. It would take fast and ubiquitous wireless networking (WiFi, BT, and cellular) c. 2003 before the app store concept would arrive generally for smartphones and other devices.

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