Where can I get coupons for Texas Instruments TI-82 Graphing Calculator

Texas Instruments TI-82 Graphing Calculator Price: $115.50 In Stock. Ships from and sold by Quantum Electronics, Inc.. Only 1 left in stock--order soon. 4 new from $80.00 17 used from $21.94 Technical Details Graphing calculator for math and science work Computer connectivity enabled Programming and data collection 8-line by 16-character display 1-year warranty Product Details Product Manual [2.54mb PDF] Item Weight: 1 pounds Shipping Weight: 1 pounds (View shipping rates and policies) Shipping: Currently, item can be shipped only within the U.S. ASIN: B00005QT8B Item model number: TI-82 2001 Product Description From the Manufacturer The restyled TI-82 offers a basic set of graphing tools for mathematics and science coursework. The TI-82 is the predecessor to the upgradeable TI-83 Plus. The TI-82 is compatible with TI-GRAPH LINK--your link to connecting your TI-82 to your computer. This software and cable (sold separately) allows for transferring your files and data between the calculator and computer. Enjoy key functionality for math and science: Graphical analysis. Find function values, roots, intersections, maximums, minimums, derivatives, and integrals. Analyze a graph interactively while you view it. Plots. Four plot types including scatter, box-and-whisker, xy-lines, and histograms. Define and store up to three plots from the Stat Plot editor. Data analysis. Choose from eight regression models and four plot types. Available regressions include median-median line and quadratic, cubic, and quartic polynomial regressions. Graph-table split screen. Allows you to trace the graph and scroll table values simultaneously. Matrices. Analyze up to five matrix variables. Size limited only by available memory. Data lists. Store data in lists containing up to 99 elements per list. Tables. View and evaluate function variables in numeric table format. Functions. Define, save, and graph up to 10 rectangular, six parametric, and six polar functions in addition to two recursively-defined sequences. Programming. Includes keystroke programming commands for conditional tests, jumping, and loops. Data collection. This tool is compatible with the CBL 2, CBL, and CBR for collection and analysis of real-world data. Customer Reviews TI-82 Review, July 29, 2005 A Kid's Review This review is from: Texas Instruments TI-82 Graphing Calculator (Electronics) This calculator is good and is designed for pre-algebra and algebra students. However it is a very old model and has been discontinued. Most schools now use the newer TI-83 plus. Other source: http://www.ebay.com/ctg/Texas-Instruments-82-Graphic-Calculator-/54842932 http://www.epinions.com/reviews/offc-Calculators-All-Texas_Instruments-Texas_Instruments_TI_82 Source: http://www.amazon.com/Texas-Instruments-TI-82-Graphing-Calculator/dp/B00005QT8B