Our calculators are fully tested and inspected by our team of expert technicians. You get the same long lasting calculator at a fraction of the price.
We offer a 1-year warranty. No questions asked.
Includes refurbished calculator, slide cover, rechargeable battery, and charging cable.
- 2-D Function, Polar, Parametric Plot; Differential Equation, Bar Plot; Histogram, Scatter Plot; Find: Intersect, Extremum, Slope, Area; Zoom, Trace, Co-ordinates, Shade
- Decimal hrs/hrs min sec conversions; Polar/rectangular conversions; Angle conversions; Base conversions and arithmetic; Unit conversions; Bit, Boolean graphics; Display and printer graphics
- Memory: 32 MB mDDR ; Flash memory: 256 MB
- RPL-style RPN (Reverse Polish Notation), available in Home mode only
- EOS-style algebraic, available in Home and CAS modes
- Equation Writer (textbook-style input) available in both modes
- Stack display shows 10 lines
- Header shows important settings, a digital clock, and battery charge
Pre-Algebra, Algebra I & II, Geometry, Trigonometry, AP Calculus, AP Statistics, Biology, Physics, and Business & Finance.
AP Calculus*, AP Statistics*, AP Chemistry* SAT* I/II, PSAT/NMSQT*, ACT*, IB*
"I bought a refurbished TI-83 from Topcalcs, and it works great for my college classes. I did not want to buy a new one since Texas Instruments charges too much for an old calculator." - David
"The most durable calculator I've ever had. If you have just one of these calculators, 1 is all you'll ever need provided you don't lose it. You'll likely lose it before it ever breaks. I own one from 7th grade that I have now owned for 15 years." - Lindsey