Texas Instruments TI-89 Titanium Graphing Calculator - Renewed Premium Quality | Perfect for Engineering, Calculus & Advanced Math Classes | STEM Education Essential Tool

This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.

Graphing calculator handles calculus, algebra, matrices, and statistical functions

188 KB RAM and 2.7 MB flash memory for speed; plenty of storage for functions, programs, data

Large 100 x 160 pixel display for split-screen views. Compatible with CBL 2 system, CBR 2 motion sensor, vernier easylink and vernier easytemp systems to allow collection and analysis of real-world data

USB on-the-go technology for file sharing with other calculators and connecting with PCs

Backed by 1-year warranty