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Buy used:
$23.60
+ $6.38 shipping
Used: Good | Details
Sold by Clickers4sale
Condition: Used: Good
Comment: Has light scratches on the screen. RETURNS ACCEPTED, 45 days! good condition, works great. Comes with batteries and cover. Experienced eebay seller for 10+ years, ships fast! may have a name etched or scratched on the back

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Texas Instruments TI-85 Advanced Graphing Scientific Calculator

2.8 out of 5 stars 78 customer reviews
Available from these sellers.
  • Enter your model number above to make sure this fits.
  • Up to 99 graphing functions defined, saved, graphed, and simultaneously analyzed
  • Easy-to-read 8-line by 21-character display
  • Link capabilities for data transfer through I/O port
  • Powered by 4 standard AAA batteries with a lithium battery backup
  • Guidebook, unit-to-unit link cable, case, 1-year warranty
3 new from $188.99 18 used from $23.60 2 refurbished from $60.00

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Product Information

Product Dimensions 8.9 x 4.4 x 1.8 inches
Item Weight 1.2 pounds
Shipping Weight 1.2 pounds
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
ASIN B00005QT8A
Item model number 85
Customer Reviews
2.8 out of 5 stars 78 customer reviews

2.8 out of 5 stars
Best Sellers Rank #95 in Electronics > Office Electronics > Calculators > Graphing
#96 in Electronics > Office Electronics > Calculators > Scientific
#82,097 in Office Products > Office Supplies
Date first available at Amazon.com September 4, 1973

Technical Specification

User Manual [pdf ]

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsStill using after 15 years...
By Kyle Debruyn on April 28, 2010
This calculator got me through two years of advanced high school math, two and a half years of college calculus, and general use almost every day at work as an engineer/scientist. It is my calculator of choice for EVERYTHING from simple arithmetic to graphing complex equations, to solving integrals and differential equations. The battery life has been phenomenal -- I maybe change them out once a year, if that. I have used it almost every day for 15 straight years. Contains some very powerful features and functions for almost any math need you can throw at it. You can purchase a used TI-85 for not much money these days as well. True, it may not be as easy to use as the TI-83, but I would never give up my TI-85 for anything.
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4.0 out of 5 starsTI - 85 Overall, a good graphing calculator.
By Jason Patterson on January 18, 2003
With a large number of features and a huge range of functions, the TI-85 is a graphing tool that is well worth its cost. It is fully programmable, using a BASIC-like programming language. Texas Instruments discontinued this line of calculators however, and though they may have had their own reasons, I know of at least two flaws with this particular calculator. The first is that there are some bugs in its programming, such as its inability to convert negative temperatures. The second and much more serious problem is that the screen is not reliable. Roughly half of these calculators have one or more lines or columns of pixels fail after a few years of use. As long as you aren't paying retail price, however, the $$$it might cost for a used TI-85 is more than worth it. Enjoy.
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5.0 out of 5 starsused for years, no problems!
By Jennifer Hersom on July 27, 2007
I used this calculator throughout all of my high school and college math classes. I got years of use and never any problems!
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4.0 out of 5 starsreplaced my TI-30 Stat
By A Customer on September 9, 2003
I used a scientic calulator for years. I bought the TI-85 my Senior year of High School and even though I'm not yet in college (five years later) I'm still a nerd that likes to play on it. most of time I just use it for basic stuff I can still do with a new TI-30X I bought granted I can graph with it and I've been looking hard at TI-89 for no other reason than I can. (more than likely would be my next purchase if I did buy another one) the sad thing is resources for this calulator are limited seeing as it's been discontinued but you know it's still more powerful with it's computing power over my GF TI-83 plus. it just lacks the storage of memory.
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5.0 out of 5 starsgreat calculator
By Joe E. on May 29, 2011
I've been using this calculator since 1993 with no problems whatsoever. It got me through an engineering degree back then and another more recently (just finished). During this second degree, I purchased a TI-89 and did not like it at all. While it does a lot of things that the 85 doesn't, I found it less intuitive to use for what I need. It does so much that it can be difficult to find the things you need to do.

The 85 handles complex numbers and simultaneous equations with ease, as well as definite integrals. For indefinite integrals and symbolic math, you may need a newer model.
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5.0 out of 5 starsExcellent Investment..
By DV_User on March 24, 2003
Verified Purchase
Its an excellent investment for engineers. The Calci helps a lot in mathematical calculations. It has a Huge number of engineering applications. Few applications which I found VERY Useful are
(1) Inverse of a Matrix (2) Solving Quadratic and higher order Equations. (3) Plotting the graph of Algebric Equations which help in finding out the Maxima and Minina..
regards,
A Graduate Student
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1.0 out of 5 starsGraphing calculator
By jackie m. on July 9, 2015
Verified Purchase
I received this product and when I turned it on you could barely see anything on the screen. There was no way that I would have been able to use it for my class. I would but a product like this in a store instead.
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4.0 out of 5 starsNot the 83, but still as good.
By wolfmaster757 on December 1, 2011
My TI-83 was stolen in my physics class one day (still pissed about that), so I bought this cause it was half the price and I was not gonna pay over $100 for another calculator. It worked great! It wasn't new, but that was okay. A few scratches here and there, but overall it did the job and I passed physics.
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Most Recent Customer Reviews

2.0 out of 5 starstalk about old school

I received like the oldest version of this calculator and I can hardly read the screen. Not kewl.

Published 1 month ago by Lacy M Shamblin
1.0 out of 5 starsOne Star

I got a broken calculator

Published 1 month ago by Amazon Customer
5.0 out of 5 starsFive Stars

Excellent service, everything was done in a timely manner. Great product as well! Thank you!

Published 2 months ago by mohsen nourishad
1.0 out of 5 starsWorst Purchase Ever

Was not even close to the calculator in the picture and came without a protective cover. It doesn't have the same buttons and functionality as those in class so it is unusable.

Published 2 months ago by Kevin
2.0 out of 5 starsTwo Stars

Cannot put in x and y values in table. Does not have STAT feature

Published 3 months ago by Alexandra Berger
2.0 out of 5 starsThink about getting a newer Ti-84

The calculator that I recieved was not the one in the picture. While it works and does its purpose like it is supposed to, it is obsolete. Read more

Published 4 months ago by Ricky Arrington
3.0 out of 5 starsThat's not to say that TI makes bad products, because they don't

This calculator should be half the price for the dearth of utility and functions it has, but since it is one of very calculators allowed in most math classes TI can afford to rip... Read more

Published 4 months ago by JS
3.0 out of 5 starsThree Stars

It's okay.

Published 4 months ago by Amazon Customer
1.0 out of 5 starsNot a good ideal to buy used.

This item is rather old and wore out a lot of the function are not very usable. But I was aware that the item was used, so I got the I paid for.

Published 5 months ago by Ms. Nicole Johnson
5.0 out of 5 starsFive Stars

Got this for my daughter and she loves it.

Published 6 months ago by Jennifer Hughes

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