Intuitive, easy-to-learn icon display: the use of icons on the menu screen improves viewability; selection of the desired function is quick and easy. Natural Textbook Display: input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks. List display function for thorough, speedy learning: variables and statistical calculation results stored in memory can be displayed in lists. Easy-to-understand English messages and interactive format: nearly all English words are displayed unabbreviated; interactive menu display for intuitive operation. Multiline display: formulas are automatically wrapped to multiple lines (in linear input mode). Variables list: one-touch list display. Statistics list: displays six rows at once. Digit separator: separation every three digits makes even large numbers easy to read. Description: Non Programmable; Number of Functions: 274; Natural textbook display - displays expressions same as textbook; AAA x1 (R03); 10+2 digits (10-digit mantissa + 2-digit exponential display); Dot matrix display - high-resolution screen; Multi-replay - quick and easy recall of previously executed formulas for editing and re-execution; Plastic keys; Basic Mathematical Functions (Trigonometric, Exponential logarithmic, etc.); Table Generation - create a numerical table based on a registered function expression, graph functions can be represented by graphs; Intermediate Statistics (Paired-variable statistical calculation, Quartiles, List display); List based STAT-data editor; AAA-size Battery; Non Graphing; Basic Statistics (Mean, SUM, Standard Deviation, Regression).