Fully working Texas Instruments TI-84 PLUS graphing calculator. MathPrint technology allows symbols, formulas or stacked fractions to be entered, and the alphabetical catalog displays every function in a single menu. Ten graphing functions can be defined and saved at once, while 24KB of RAM supplies ample space for applications, variables and other data. Graphing calculator offers 10-digit 8-line LCD display for showing graphs and charts Explore math expressions in symbolic form, see patterns, and understand the math behind the formulas Operates on four AAA-type batteries for portability 480KB ROM memory and 24KB RAM memory capacity to tackle complex computing Amortization, cash flow, and time value of money (TVM) functions make financial calculations streamlined Graphing functions, including polar, sequence, zoom, parametric plot, histogram, scatter plot, cobweb plot, and much more Package content: hard case, unit-to-unit USB cable Comes loaded with 10 software applications, including cabri jr., studyCards, science tools, vernier easyData, topics in algebra 1, learning check, conic graphing, and more. These are slightly used calculators, hence the price. They have been tested and work. I have two for sale.