Featuring 274 functions and high-resolution LCD, CLASSWIZ fx-991EX lets users create spreadsheets up to 5 columns and 45 rows for max of 170 data items. Natural textbook display means that mathematic equations and formulas, such as powers, logarithms, and roots, are displayed in natural format as they would appear in student's textbook. With ability to convert graphs into QR codes which can be displayed on projector screen, calculator helps instructors and students work together seamlessly.