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dheerayesterday at 8:59 PM5 repliesview on HN

Honest question: Why do we need physical graphing calculators anymore? Can't this just be a phone app?

That screen resolution for one is horrible for 2026.


Replies

loloquwowndueoyesterday at 9:04 PM

Mostly for students in settings that may disallow either smartphones or calculators with specific advanced features (schools, SAT exams etc)

Also I don’t know about you but these days I welcome stuff that allows me to stay away from the damn phone.

saagarjhatoday at 9:46 AM

I am pretty sure I could use a TI-89 Titanium in the dark even now

mkprcyesterday at 10:17 PM

It's about ensuring "academic honesty" on exams. Also, it's nice to have buttons rather than a touchscreen. Also, there is something to be said about using a device with a different form-factor than the one on which a student also scrolls TikTok/IG and distracts themselves otherwise.

akgoeltoday at 1:44 AM

You don't. Most academic uses are now replaced by desmos, which is also used on the SAT. It's free, it's fast, and it does most of what you need.

8noteyesterday at 9:30 PM

i moved my ti-89 to be a phone app, but it was much much slower to type on the soft keyboard than it is to press the actual buttons.