Purple Edition Of The Ti-84 Plus Silver. The Texas Instruments TI-84 Plus Silver Edition Graphing Calculator allows to view an equation, its graph, and the coordinates all at one time. Jump from point to point by entering a number. Several useful plot types are available, including scatter, box-and-whisker, XY-line, histogram, and normal probability plots. Advanced statistics and regression analysis, graphical analysis, and data analysis are readily accessed, along with features for calculus, engineering, financial, logarithm, trigonometry, and hyperbolic functions--all crucial tools for advanced analysis. With its clear display and fast processing, the calculator incorporates graphing tools for mathematics and science course work, including statistics and finance. Thirty Apps are pre-loaded. For students in math and sciences, the TI-84 Plus Silver Edition is a powerful, problem-solving tool with features for storing, graphing, and analyzing up to 10 functions. Plus, it displays graphs and evaluates tables on a split screen, allowing you to trace the graph and scroll through table values simultaneously. The optional kickstand slide case is great for desktop work. The TI-84 Plus Silver Edition is powered by four AAA alkaline batteries (not included) , with an automatic shutoff to save energy. It is supported by a one-year limited warranty. Graphing calculator handles calculus, engineering, trigonometric, and financial functions USB on-the-go technology for file sharing with other calculators and connecting to PCs 11 apps preloaded Displays graphs and tables on split screen to trace graph while scrolling through table values Backed by 1-year warranty