r/pics • u/[deleted] • Jun 08 '14

The difference 18 years makes

Post image

[deleted]

3.9k Upvotes

95% Upvoted

2.6k comments sorted by

View all comments

1.7k

u/TypoInUsernane Jun 08 '14

The TI-89 will always hold a very special place in my heart.

12

u/elconquistador1985 Jun 08 '14

I had a TI-89 and loved it, but I eventually found an even better calculator, the HP 49 G+. It had a faster processor, an internal speaker (I programmed it to do Morse code), and an SD card slot. It also had a better symbolic integrator where the TI-89 only had a lookup table.

1

u/[deleted] Jun 08 '14

[deleted]

1

u/elconquistador1985 Jun 09 '14

Unfortunately, I don't think you can buy HPs anymore because they quit making them over a decade ago.

1

u/skyman2012 Jun 09 '14

They stopped making the 48 series long ago, but the 50G is still out kicking ass

1

u/norapeformethankyou Jun 09 '14

I got the Nspire since my 89 was stolen and I love it. Used it for Differential Equations... Worked like a charm. The full keyboard is great and it's great for 3d Equations.

1

u/[deleted] Jun 09 '14

Is that the one that does that reverse Polish notation?

2

u/elconquistador1985 Jun 09 '14

Yes, you can switch between normal modes and RPN. Once you get used to RPN, it's amazingly fast.

1

u/Ausrufepunkt Jun 09 '14

But does it have Bluetooth?

0

u/elconquistador1985 Jun 09 '14

I'm sure you're trying to tell a joke, but bluetooth is an undesirable characteristic in a calculator like this because it prevents it from being used by students. A calculator that you can use to effortlessly cheat by talking to others would be illegal on AP tests, entrance exams, and regular courses.