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Texas Instruments TI-89 Titanium Graphing Calculator - CAS - $100 (South Vancouver)
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TI's flagship CAS graphing calculator: the built-in Computer Algebra System (CAS) solves equations symbolically, plus 3D graphing, for AP, advanced math, and engineering coursework. It is the most powerful TI graphing calculator allowed on the AP Calculus, AP Statistics, AP Physics, AP Chemistry, PSAT/NMSQT, and SAT exams.
Tested and working — the screen is shown powered on and solving x² + 4x + 1 = 0 symbolically (see photos). It already has the latest OS version installed — OS 3.10 (Advanced Mathematics Software, shown on the About screen in the photos).
Includes the slide cover. USB port and I/O port on top (see photo). Runs on 4 AAA batteries — a fresh set of AAA batteries is included. Note: the button-cell backup battery (SR44SW / 303 silver-oxide cell) needs to be replaced, and this has been factored into the price.
Condition: used – good. Shows normal signs of use, fully functional.
Cash only.