- Large and easy to read 8-line by 16-character display
- Graphs up to 4 functions and 3 parametric equations
- Easy-to-use display menus with advanced functions
- 2.4K byte memory stores up to 37 programs
- Easy-to-use keyboard layout; protective slide case
Technical Details
Product Details
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Product Description
From the Manufacturer
Designed for ease of use, the keys of the TI-81 are grouped by color and physical layout to allow easy location of the key you need. The keys are divided into four zones: graphing keys, editing keys, advanced function keys, and scientific calculator keys.
TI-81 calculator, battery, guidebook, protective slide case
Features:
- 8-line by 16-character display
- Defines, saves, and graphs up to four functions and three parametric equations
- Enter, save, and manipulate up to three 6x6 matrices
- Advanced functions accessed through easy-to-use display menus
- One- and two-variable list-based statistics
- Saves up to 37 programs in its 2.4K bytes of memory
- Slide case included
TI-81 calculator, battery, guidebook, protective slide case
Customer Reviews
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Most Helpful Customer Reviews
11 of 11 people found the following review helpful:
4.0 out of 5 stars
Hong,
This review is from: Texas Instruments TI-81 Graphing Calculator (Office Product)
Actually, at first I was a hesitate to buy the ti-81. Finally, I had made the decision to buy it. I find that it's worth every penny. I love it. Trust me, this calculator can do almost everything like the ti-83, except that it doesn't have as much memory as the ti-83 and the ability to transfer info. However, I find that the ti-81 is every easy to use. Not bad at all!!
10 of 10 people found the following review helpful:
3.0 out of 5 stars
Does the job but isn't amazing,
By Jen M (Iowa) - See all my reviews
This review is from: Texas Instruments TI-81 Graphing Calculator (Office Product)
You get what you pay for here. I am a cheap college student, and I pay for a cheap calculator. It works wonderfully, but the only thing that is inconvenient for me is the memory this little thing has. If I want to look back to the last equation I put in, it doesn't remember it, unlike new calculators. But, hey, I am totally satisfied because I only needed it for one semester. It does a lot more than my little casio calculator too. To my knowledge it has the functions as a newer one that typical people might use(of course there are sweet programs from the new ones, but most don't use those functions anyway). It works well, especially for the price I paid. :)
5 of 5 people found the following review helpful:
4.0 out of 5 stars
Pretty Good Calculator,
By
This review is from: Texas Instruments TI-81 Graphing Calculator (Office Product)
I needed a good graphing calculator quick, and this one really does the job. It's just as good as the later models, don't waste your money on the more expensive ones. The batteries do go pretty quick though. I have to constantly adjust the contrast due to low battery power.
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