Redesigned ES PLUS series calculators featuring easy-to-understand Natural Textbook Display Presentation Introduces the excellent features of the ES PLUS series 2nd edition Design Simple and easy to use Optimal education tools realized through a design that emphasizes comfort in the hand, legibility, and usability through the pursuit of simplicity Quality Authentic quality Excellent quality and authentication ensure confidence and peace of mind for use in educational settings Function Natural Textbook Display Features Natural Textbook Display format for displaying equations and calculation results just as they appear in textbooks Premium content A variety of original CASIO content is available to make learning mathematics fun. Users can access this content by registering after the authentication check.