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Yossarrian22today at 8:48 PM7 repliesview on HN

Ti really needs to stop with the artificial product differentiation. There's no reason 15 years after the Nspire CX CAS came out that everyone of their calculators can't do CAS.


Replies

sosborntoday at 8:59 PM

CAS capabilities are prohibited in the SAT: https://satsuite.collegeboard.org/sat/what-to-bring-do/calcu...

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JoshTripletttoday at 8:51 PM

Advanced calculators are in an unusual space with external constraints on it. Some of the features or differentiation they add serves the constraint of "if you don't, we won't let students use it in the classroom".

When a calculator is used in a classroom, there's a concern about people using the calculator to replace the skill that's being taught. So, for instance, there's space for a calculator with no CAS, for a class that's trying to teach you to do algebra. That is in some ways easier than "don't use this function of the calculator".

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NetMageSCWtoday at 8:50 PM

The reason is exam requirements - some professional certifications don’t allow CAS calculators and have other restrictions.

xp84today at 8:52 PM

I don't think it's been about costs or CPU for at least 20 years, but isn't it more that for kids to learn to do math, it's better not to have CAS always at hand? So that's why there are some in the lineup without it.

loegtoday at 8:51 PM

It doesn't help students learn if the tool does everything for them. This isn't a tool for professionals.

alfalfasprouttoday at 8:49 PM

Heck, you could do a decent amount with the CAS back in the TI-89.

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dheeratoday at 8:59 PM

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.

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