The Casio ClassPad 300, ClassPad 330 and fx-CP400 are stylus based touch-screen graphing calculators. The ClassPad comes with a collection of applications that support self-study, like 3D Graph, Geometry, eActivity, Spreadsheet, etc. A large 160×240 pixel LCD touch screen enables stylus-based operation. The ClassPad resembles Casio’s earlier Pocket Viewer line. HP and Texas Instruments attempted to release similar pen based calculators (the HP Xpander and PET Project (see TI PLT SHH1), but both were cancelled before release to the market.
Calculate in comfort using the FX-9860G SD graphic calculator and its Natural Display, eActivity, Spreadsheet and SD card slot.