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Texas Instruments TI-89 Titanium Graphing Calculator Working Dark Spots No Cover
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Texas Instruments TI-89 Titanium Graphing Calculator Working Dark Spots No Cover
US $17.99US $17.99
Sun, Jul 13, 04:53 PMSun, Jul 13, 04:53 PM
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Texas Instruments TI-89 Titanium Graphing Calculator Working Dark Spots No Cover

uni.collective
(985)
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US $17.99
ApproximatelyC $24.88
or Best Offer
Condition:
Used
Sell one like this
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    Shipping:
    US $8.00 (approx C $11.06) USPS Ground Advantage®.
    Located in: Lake Oswego, Oregon, United States
    Delivery:
    Estimated between Tue, Sep 9 and Thu, Sep 11 to 94104
    Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
    Returns:
    30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
    Payments:
         Diners Club

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    eBay Money Back Guarantee
    Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
    Seller assumes all responsibility for this listing.
    eBay item number:396677518058

    Item specifics

    Condition
    Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
    Brand
    Texas Instruments
    Type
    Financial, Graphing, Scientific
    Power Source
    Battery
    Size
    Handheld
    Model
    Texas Instruments TI-84 Plus
    MPN
    Ti-89 Titanium
    Features
    Calculus, Programmable, USB
    Country/Region of Manufacture
    China
    UPC
    Does not apply

    Item description from the seller

    About this seller

    uni.collective

    99.4% positive feedback•2.8K items sold

    Joined Feb 2021
    Visit storeContact

    Detailed seller ratings

    Average for the last 12 months
    Accurate description
    4.9
    Reasonable shipping cost
    4.7
    Shipping speed
    4.9
    Communication
    5.0

    Seller feedback (907)

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    • 0***s (1)- Feedback left by buyer.
      Past year
      Verified purchase
      This is the first time I shop from this seller and from ebay. Before buying I sent a message to the seller and received a quick response, very nice. The product came just as announced, well packed and in good time considering that the purchase and delivery was made around Christmas season. Overall a very good experience and a great value for this product, I'm very happy with my purchase.
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    • 0***0 (907)- Feedback left by buyer.
      Past 6 months
      Verified purchase
      Wow! Ordered the printer on Wednesday, and it's already arrived on Saturday, AS DESCRIBED, NEW IN BOX, AND RUNNING PEFECTLY! This is how it supposed to be done! Great eBayer! A++++
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    • r***d (2)- Feedback left by buyer.
      Past 6 months
      Verified purchase
      Everything was perfect. Value , Shipping. Packaging and as described.. Great communication with seller. Unboxed it used it could not be happier.
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    Product ratings and reviews

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    4.7
    414 product ratings
    • 354 users rated this 5 out of 5 stars
    • 37 users rated this 4 out of 5 stars
    • 6 users rated this 3 out of 5 stars
    • 2 users rated this 2 out of 5 stars
    • 15 users rated this 1 out of 5 stars

    Good value

    Would recommend

    Good quality

    Most relevant reviews

    See all 242 reviews
    • by warburrito
      May 13, 2020Top favourable review

      Works great for my high school son

      Works great for my son who is in high school. Apparently whatever model the teacher uses has a few keys that are in different spots so not every function works using the exact same keys, but that has not been a problem for my son. However, if your child's teacher uses a specific model I would suggest getting that model instead so that learning would be easier for someone not as technologically inclined as my son.

      Verified purchase: YesCondition: Pre-Owned

    • by dadgum1
      Feb 13, 2017

      Powerful calculator

      This is a used item of course, so the only thing guaranteed is the calc itself. I'm loving the computer algebra system on it; taking DE and Linear Algebra this semester and never knew how much of a time saver it was. Solves for x, does operations for polynomials, factors, integrates and d/dx functions, trig extpansion, etc. Only thing thats kinda a pain is matrices, but you get used to it. Wish I had this earlier. Lot of other calcs have CAS, but this is at great price too. this website lists a lot of the features and gives you a good idea of what this calc can do and gets you started using fast as well: prenhall d0t c0m /esm/app/graphing/ti89/homescreen/Menukeys/f1 d0t html replace all the d0ts and c0m

      Verified purchase: YesCondition: Pre-OwnedSold by: Vt793et9Q3O@Deleted

    • by msrobin2
      Sep 07, 2016

      Perfect for the engineering student

      If your studying engineering this is a must have, It has all the features that you need to succeed. with it's build in computer algebra system it can evaluate and simplify expressions, and display them as they would be written by hand thus making test easier. It returns all of the equations for a quadratic variable making it the ideal cheat-a-lator. well worth your time and effort to learn how to use this jewel.

      Verified purchase: YesCondition: Pre-OwnedSold by: 222775

    • by sterlinghhartman
      Aug 20, 2019

      PhD Mathematician in Plastic

      Incredibly powerful \. You probably won't be able to use all of its functions. On the negative side: font showing date and time is incredibly small and there is no way to increase font size.

      Verified purchase: YesCondition: NewSold by: dealoff

    • by pokemon1216029
      Feb 28, 2018

      Really great calculator.

      The beauty of this calculator is that it can perform basic algebraic functions for you; no more binomial expansion or tedious polynomial operations. Makes checking work very easy, and is even approved for the SAT and AP examinations. And the price is right; used with barely any wear.

      Verified purchase: YesCondition: Pre-OwnedSold by: nhfastcash

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