Sold as 1 Each. 10 Pack includes ten 10 Digit graphing calculator with 2.8' 16-bit backlit display (320 x 240 resolution, 140 dpi) and graphing modes, 1 Charging Station, 5 computer cables, 5 unit to unit cables, getting started materials, and a classroom poster. Memory: 149KB RAM, 3MB flash for data archive and storage of apps. Matrix operations including inverse, transpose, reduced row echelon form and elementary row operations, convert matrices to lists vice-versa. User-defined list names, lists store up to 999 elements, 17 interactive zoom features. 5 USB cables for recharging are included. Different options for coding languages including Python and Basic. Powered TI rechargeable battery offers reliable performance. Features up to 10 graphing functions defined, saved, graphed and analyzed at one time. Has horizontal and vertical split-screen options, view graph and table side-by-side, stores up to 10 - 50 x 50 matrices. Performs 10 rectangular functions, six parametric expressi