zlacker

I remember my math teacher used to come around and take everyone’s batteries out at the start of an exam to clear the RAM. Little did she know you can just save the notes in ROM that persists power cutoff.

>>notjes+(OP)
Well, I'm pretty sure the teachers don't actually understand 1/2 the functionality of most of these calculators even without the model variations.

Even the non CAS models can solve a lot of programs numerically which in my mind creates a lot of confusion about what people gain with simple programs.

Particularly as even without a built in root/etc finder, things like newton's method (or any numerical/recursive algo) can be used on the main calculation screen by using the previous result variable in equations and holding down the enter/repeat key until it converges or you get enough precision.

Most of them also have a constants list that includes pretty much every constant your going to use in science/engineering/etc school.

So I remember seeing some of my classmates programs for various classes and calculators (HP 84s/various other TIs), and I never remember wanting any of them because I knew how to solve the exact same problem with the built in functionality on my TI-85.

>>notjes+(OP)
Many of us do, but resetting the ROM will also wipe out all of the pre-installed "flash" apps that a colleague might want to use. It's a trade-off.

edit: or at least, it used to. Haven't tested in years.