Anyone have a TI-89 calculator?


Musick17

Musick17

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Does anyone have a TI-89 graphing calculator that they would be willing to sell? I had a TI-84 that worked for me through high school but now that I am starting into my calc series (Calculus I, II, and II :icon_cheers:) I need to upgrade.

If you, or your kids, have one that you no longer need hit me up!

Thanks guys :D
 
what the shit? i wasnt allowed to use a calculator in college
 
I have a TI-84 and don't see the need for any thing more complex. Whats so special about the 89?
 
My Goodness, thanks for making me feel old! We had the old cordless ones called a slide rule. First job in engineering they had the top of the line Wang mechanical caluculator. If you ever wonder where the name "number crucher" came from, that was it. Wish I had bought it when they upgraded.
Dave of the Nord
 
RangerBoy94 said:
I have a TI-84 and don't see the need for any thing more complex. Whats so special about the 89?
Click to expand...

I dont know exactly what the difference is between the two. I believe the 89 allows you to create 3 dimensional graphs and gives you more options to shift and manipulate graphs. All I know is that everyone I have talked to has said to get the 89 because its functions and user interface is so much easier to use when your an engineering major. And... a family friends son needed an 84 so I sold them mine. Its a win win kinda thing.
 
Mac said:
My Goodness, thanks for making me feel old! We had the old cordless ones called a slide rule. First job in engineering they had the top of the line Wang mechanical caluculator. If you ever wonder where the name "number crucher" came from, that was it. Wish I had bought it when they upgraded.
Dave of the Nord
Click to expand...

A teacher of mine had a slide rule and I found it in her closet at school and was like "uhhh....whats this? :icon_confused:"
 
Musick17 said:
I dont know exactly what the difference is between the two. I believe the 89 allows you to create 3 dimensional graphs and gives you more options to shift and manipulate graphs. All I know is that everyone I have talked to has said to get the 89 because its functions and user interface is so much easier to use when your an engineering major. And... a family friends son needed an 84 so I sold them mine. Its a win win kinda thing.
Click to expand...

Ok. 3-D graphs on a calculator is prett crazy how much does one of those run new. 200 range?
 
probably about 180-200 new

new on ebay... about 120

used on craigslist/ebay 50-80
 
The 89 does does symbolic math. What that means is that you can have the calc factor, solve for real and imaginary solutions, and with the add on, show all of the steps involved.

-Rouphis
 
Somewhere around here I have a TI-83, a TI-83+, and a TI-89.....

And no, I do not wish to part with any of them.... I have a bunch of wicked cool games for the TI-89 :icon_rofl:

But seriously, I went through calc courses and the most powerful calculator they let me use was a TI-83+ and a lot of times we had to show work and do it long hand anyway, so about all the calculator was good for was to double check your work (or play games while the rest of the class finished the test).
 
They have recommended a TI-89 for us to use. I guess they figure the technology is here now and always will be and we're gonna use it when we graduate, so why not help us be proficient in how we will actually be doing a job.
 
I went through Calculus class with a TI-86, also algebra, trig, and all of high school. Those TI calculators are so useful, you only need one for all your needs. But I too may need a new one. Not because I need to upgrade, just mine is dying. The screen has 2 or 3 lines that don't respond too well any more.
 
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They really are amazing. I freakin love the Block Dude game on my 84
 
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