Plastic keys: Designed and engineered for easy operation‎.‎ Natural V‎.‎P‎.‎A‎.‎M‎.‎ display: Display expression same as textbook‎.‎ List based STAT‎‐data editor Viewing and editing of input data in list format‎,‎ showing data groups ‎(‎x‎‐data‎,‎ y‎‐data‎,‎ frequency‎)‎ and surrounding data‎.‎ Multi‎‐replay: Quick and easy recall of previously executed formulas for editing 274 functions 12 digits Power Supply AAAx1(R03)