The updated fx-300ES PLUS 2nd Edition (FX-300ESP2-PK) comes with Natural Textbook Display™ (NTD). NTD displays formulas and results exactly as they appear in the textbook. The 300ES also comes in a bold blue protective hard case. This slim and sleek scientific calculator offers all the functionality needed for middle school mathematics classes, high school, and college-level Statistics courses including fraction calculations, statistics and tables.